7900 is what percent of 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 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 9, so we can write it down as 100%=9.
4. We know, that x% equals 7900 of the output value, so we can write it down as x%=7900.
5. Now we have two simple equations:
1) 100%=9
2) x%=7900
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%=9/7900
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 7900 is what percent of 9

100%/x%=9/7900
(100/x)*x=(9/7900)*x       - we multiply both sides of the equation by x
100=0.0011392405063291*x       - we divide both sides of the equation by (0.0011392405063291) to get x
100/0.0011392405063291=x
87777.777777778=x
x=87777.777777778

now we have:
7900 is 87777.777777778% of 9