Method and examples
Compounded ratio calculator
Method
0. All methods
1. If a:b=2:3 then find (a^2+b^2)/(ab)
2. If a:b=2:3,b:c=4:5 then find a:b:c
3. If a/b=c/d then prove that (2a+3c)/(2b+3d)=(5a-4c)/(5b-4d)
4. If x/(y+z)=y/(z+x)=z/(x+y) then prove the value of each ratio is 1/2 or -1
5. Geometric Mean
6. Ratios(duplicate, triplicate) and proportional(mean, third, fourth)
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:c` If `b:c=4:5,c:d=5:6`, then find `b:c:d` If `a:b=2:3,b:c=4:5,c:d=5:6`, then find `a:b:c:d` If `2a=3b`, then find `a:b` If `2a=3b=7c`, then find `a:b:c`

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 2:3 Find Triplicate ratio of 2:3 Find Sub-Duplicate ratio of 16:25 Find Sub-Triplicate ratio of 8:27 Find Compounded ratio of 2:5,3:4 Find Compounded ratio of 2:3,3:4,4:5 Find Mean proportional of 8,32 Find Third proportional of 16,36 Find Fourth proportional of 3,7,15 Find Compare ratios of 2:3,3:4,4:5

Solution
Solution provided by AtoZmath.com

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