Finding the Fourth Proportional to 98,302,726.98, 135,708,761.19 and 71,811,334.26
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Solution
The fourth proportional to 98,302,726.98, 135,708,761.19 and 71,811,334.26 is: 99,136,895.91
Step by Step Solution
- Step 1: Write the proportion equation
98,302,726.98 : 135,708,761.19 = 71,811,334.26 : x - Step 2: Convert to fraction form
98,302,726.98/135,708,761.19 = 71,811,334.26/x - Step 3: Cross multiply
98,302,726.98x = 135,708,761.19 × 71,811,334.26 - Step 4: Simplify right side
98,302,726.98x = 9,745,427,211,825,606 - Step 5: Solve for x
x = 9,745,427,211,825,606/98,302,726.98 - Step 6: Final answer
x = 99,136,895.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.