Finding the Fourth Proportional to 159,720,229.92, 220,413,917.16 and 86,381,371.92
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Solution
The fourth proportional to 159,720,229.92, 220,413,917.16 and 86,381,371.92 is: 119,206,293.18
Step by Step Solution
- Step 1: Write the proportion equation
159,720,229.92 : 220,413,917.16 = 86,381,371.92 : x - Step 2: Convert to fraction form
159,720,229.92/220,413,917.16 = 86,381,371.92/x - Step 3: Cross multiply
159,720,229.92x = 220,413,917.16 × 86,381,371.92 - Step 4: Simplify right side
159,720,229.92x = 19,039,656,554,542,032 - Step 5: Solve for x
x = 19,039,656,554,542,032/159,720,229.92 - Step 6: Final answer
x = 119,206,293.18
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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.