100.78 is what percent of 450 - 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 450 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 450, so we can write it down as 100%=450.
4. We know, that x% equals 100.78 of the output value, so we can write it down as x%=100.78.
5. Now we have two simple equations:
1) 100%=450
2) x%=100.78
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%=450/100.78
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 100.78 is what percent of 450

100%/x%=450/100.78
(100/x)*x=(450/100.78)*x       - we multiply both sides of the equation by x
100=4.4651716610439*x       - we divide both sides of the equation by (4.4651716610439) to get x
100/4.4651716610439=x
22.395555555556=x
x=22.395555555556

now we have:
100.78 is 22.395555555556% of 450