19.8 is what percent of 220.2 - 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 220.2 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 220.2, so we can write it down as 100%=220.2.
4. We know, that x% equals 19.8 of the output value, so we can write it down as x%=19.8.
5. Now we have two simple equations:
1) 100%=220.2
2) x%=19.8
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%=220.2/19.8
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 19.8 is what percent of 220.2

100%/x%=220.2/19.8
(100/x)*x=(220.2/19.8)*x       - we multiply both sides of the equation by x
100=11.121212121212*x       - we divide both sides of the equation by (11.121212121212) to get x
100/11.121212121212=x
8.991825613079=x
x=8.991825613079

now we have:
19.8 is 8.991825613079% of 220.2