Finding the Fourth Proportional to 87,156,053.80, 130,720,083.90 and 26,557,685.80
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Solution
The fourth proportional to 87,156,053.80, 130,720,083.90 and 26,557,685.80 is: 39,832,263.68
Step by Step Solution
- Step 1: Write the proportion equation
87,156,053.80 : 130,720,083.90 = 26,557,685.80 : x - Step 2: Convert to fraction form
87,156,053.80/130,720,083.90 = 26,557,685.80/x - Step 3: Cross multiply
87,156,053.80x = 130,720,083.90 × 26,557,685.80 - Step 4: Simplify right side
87,156,053.80x = 3,471,622,915,965,839 - Step 5: Solve for x
x = 3,471,622,915,965,839/87,156,053.80 - Step 6: Final answer
x = 39,832,263.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.