13.3 is what percent of 209.9 - 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 209.9 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 209.9, so we can write it down as 100%=209.9.
4. We know, that x% equals 13.3 of the output value, so we can write it down as x%=13.3.
5. Now we have two simple equations:
1) 100%=209.9
2) x%=13.3
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%=209.9/13.3
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 13.3 is what percent of 209.9

100%/x%=209.9/13.3
(100/x)*x=(209.9/13.3)*x       - we multiply both sides of the equation by x
100=15.781954887218*x       - we divide both sides of the equation by (15.781954887218) to get x
100/15.781954887218=x
6.3363506431634=x
x=6.3363506431634

now we have:
13.3 is 6.3363506431634% of 209.9