Finding the Fourth Proportional to 99,471,841.98, 137,267,922.72 and 57,092,376.99
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Solution
The fourth proportional to 99,471,841.98, 137,267,922.72 and 57,092,376.99 is: 78,785,632.57
Step by Step Solution
- Step 1: Write the proportion equation
99,471,841.98 : 137,267,922.72 = 57,092,376.99 : x - Step 2: Convert to fraction form
99,471,841.98/137,267,922.72 = 57,092,376.99/x - Step 3: Cross multiply
99,471,841.98x = 137,267,922.72 × 57,092,376.99 - Step 4: Simplify right side
99,471,841.98x = 7,836,951,993,293,277 - Step 5: Solve for x
x = 7,836,951,993,293,277/99,471,841.98 - Step 6: Final answer
x = 78,785,632.57
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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.