Finding the Fourth Proportional to 90,374,186.97, 124,776,437.85 and 69,428,916.18
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Solution
The fourth proportional to 90,374,186.97, 124,776,437.85 and 69,428,916.18 is: 95,858,044.59
Step by Step Solution
- Step 1: Write the proportion equation
90,374,186.97 : 124,776,437.85 = 69,428,916.18 : x - Step 2: Convert to fraction form
90,374,186.97/124,776,437.85 = 69,428,916.18/x - Step 3: Cross multiply
90,374,186.97x = 124,776,437.85 × 69,428,916.18 - Step 4: Simplify right side
90,374,186.97x = 8,663,092,844,726,630 - Step 5: Solve for x
x = 8,663,092,844,726,630/90,374,186.97 - Step 6: Final answer
x = 95,858,044.59
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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.