19 is what percent of 845 - 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 845 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 845, so we can write it down as 100%=845.
4. We know, that x% equals 19 of the output value, so we can write it down as x%=19.
5. Now we have two simple equations:
1) 100%=845
2) x%=19
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%=845/19
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 19 is what percent of 845

100%/x%=845/19
(100/x)*x=(845/19)*x       - we multiply both sides of the equation by x
100=44.4736842105*x       - we divide both sides of the equation by (44.4736842105) to get x
100/44.4736842105=x
2.24852071006=x
x=2.24852071006

now we have:
19 is 2.24852071006% of 845