Home / 82,487,092.56-123,542,163-39,386,483.92

Finding the Fourth Proportional to 82,487,092.56, 123,542,163 and 39,386,483.92

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Solution

The fourth proportional to 82,487,092.56, 123,542,163 and 39,386,483.92 is: 58,989,731.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,487,092.56 : 123,542,163 = 39,386,483.92 : x
  2. Step 2: Convert to fraction form
    82,487,092.56/123,542,163 = 39,386,483.92/x
  3. Step 3: Cross multiply
    82,487,092.56x = 123,542,163 × 39,386,483.92
  4. Step 4: Simplify right side
    82,487,092.56x = 4,865,891,416,441,519
  5. Step 5: Solve for x
    x = 4,865,891,416,441,519/82,487,092.56
  6. Step 6: Final answer
    x = 58,989,731.19

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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.