13.2 is what percent of 310000000 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 310000000 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 310000000, so we can write it down as 100%=310000000.
4. We know, that x% equals 13.2 of the output value, so we can write it down as x%=13.2.
5. Now we have two simple equations:
1) 100%=310000000
2) x%=13.2
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=310000000/13.2
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13.2 is what percent of 310000000

100%/x%=310000000/13.2
(100/x)*x=(310000000/13.2)*x       - we multiply both sides of the equation by x
100=23484848.484848*x       - we divide both sides of the equation by (23484848.484848) to get x
100/23484848.484848=x
4.258064516129E-6=x
x=4.258064516129E-6

now we have:
13.2 is 4.258064516129E-6% of 310000000