Home / 87,439,718.80-131,159,578.20-84,920,294.80

Finding the Fourth Proportional to 87,439,718.80, 131,159,578.20 and 84,920,294.80

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Solution

The fourth proportional to 87,439,718.80, 131,159,578.20 and 84,920,294.80 is: 127,380,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,439,718.80 : 131,159,578.20 = 84,920,294.80 : x
  2. Step 2: Convert to fraction form
    87,439,718.80/131,159,578.20 = 84,920,294.80/x
  3. Step 3: Cross multiply
    87,439,718.80x = 131,159,578.20 × 84,920,294.80
  4. Step 4: Simplify right side
    87,439,718.80x = 11,138,110,046,587,654
  5. Step 5: Solve for x
    x = 11,138,110,046,587,654/87,439,718.80
  6. Step 6: Final answer
    x = 127,380,442.20

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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.