0.9 is what percent of 22.09 - 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 22.09 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 22.09, so we can write it down as 100%=22.09.
4. We know, that x% equals 0.9 of the output value, so we can write it down as x%=0.9.
5. Now we have two simple equations:
1) 100%=22.09
2) x%=0.9
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%=22.09/0.9
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 0.9 is what percent of 22.09

100%/x%=22.09/0.9
(100/x)*x=(22.09/0.9)*x       - we multiply both sides of the equation by x
100=24.544444444444*x       - we divide both sides of the equation by (24.544444444444) to get x
100/24.544444444444=x
4.0742417383431=x
x=4.0742417383431

now we have:
0.9 is 4.0742417383431% of 22.09