443.7 is what percent of 1989 - 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 1989 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 1989, so we can write it down as 100%=1989.
4. We know, that x% equals 443.7 of the output value, so we can write it down as x%=443.7.
5. Now we have two simple equations:
1) 100%=1989
2) x%=443.7
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%=1989/443.7
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 443.7 is what percent of 1989

100%/x%=1989/443.7
(100/x)*x=(1989/443.7)*x       - we multiply both sides of the equation by x
100=4.4827586206897*x       - we divide both sides of the equation by (4.4827586206897) to get x
100/4.4827586206897=x
22.307692307692=x
x=22.307692307692

now we have:
443.7 is 22.307692307692% of 1989