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Ratio and Proportion calculator

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 1. If a:b:c=2:3:5 then find value of (a^2+b^2+c^2)/(ab+bc+ca) Ratio : Find value of If a/b=2/3, then find (2a-3b)/(a-2b)If a:2=b:3=c:5, then find (a^2+b^2+c^2)/(ab+bc+ca)If a/4=b/15, then find (a+b)/(a-b)If (2a+3b)/(a+b)=13/5, then find a/bIf (x^2+1)/(x^2-1)=2, then find xIf x:30=12:20, then find x
 2. If a:b=2:3,b:c=4:5 then find a:b:c Ratio : Find ratio If a:b=2:3,b:c=4:5, then find a:b:cIf b:c=4:5,c:d=5:6, then find b:c:dIf a:b=2:3,b:c=4:5,c:d=5:6, then find a:b:c:dIf 2a=3b, then find a:bIf 2a=3b=7c, then find a:b:c
 3. If a/b=c/d=e/f then prove that (2a+3c-4e)/(2b+3d-4f)=(5a-4c+3e)/(5b-4d+3f) If then prove that If a/b=c/d=e/f, then prove that (2a+3c-4e)/(2b+3d-4f)=(5a-4c+3e)/(5b-4d+3f)If x/(b^2-c^2)=y/(c^2-a^2)=z/(a^2-b^2), then prove that x+y+z=0
 4. If x/(y+z)=y/(z+x)=z/(x+y) then prove the value of each ratio is 1/2 or -1 If then prove value of each ratio If x/(y+z)=y/(z+x)=z/(x+y), then prove each ratio = 1/2,-1If (5a+6b)/(7c)=(6b+7c)/(5a)=(7c+5a)/(6b), then prove each ratio = 2,-1If (ax+by)/(x+y)=(ay+bz)/(y+z)=(az+bx)/(z+x), then prove each ratio = (a+b)/2
 5. Geometric Mean Method : If A,B is given then find Geometric Mean If A,Geometric Mean is given then find B A = , B = Geometric Mean of 4/9 and 9/4Geometric Mean of 49/4 and 16/9Geometric Mean of 4x^3 and 9xGeometric Mean of 8a^2 and 32b^2Geometric Mean of 16a^4 and 81/b^4Geometric Mean of (a-b)^2 and (a+b)^2If geometric mean 6x^2 and x is 9x, find value of x
 6. Ratios(duplicate, triplicate) and proportional(mean, third, fourth) Find Duplicate ratio Triplicate ratio Sub-Duplicate ratio Sub-Triplicate ratio Compounded ratio Mean proportional Third proportional Fourth proportional Compare ratios Ratio of Find Duplicate ratio of 2:3Find Triplicate ratio of 2:3Find Sub-Duplicate ratio of 16:25Find Sub-Triplicate ratio of 8:27Find Compounded ratio of 2:5,3:4Find Compounded ratio of 2:3,3:4,4:5Find Mean proportional of 8,32Find Third proportional of 16,36Find Fourth proportional of 3,7,15Find Compare ratios of 2:3,3:4,4:5
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