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Finding the Fourth Proportional to 83,102,652.80, 124,653,979.20 and 52,491,651.20

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Solution

The fourth proportional to 83,102,652.80, 124,653,979.20 and 52,491,651.20 is: 78,737,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,102,652.80 : 124,653,979.20 = 52,491,651.20 : x
  2. Step 2: Convert to fraction form
    83,102,652.80/124,653,979.20 = 52,491,651.20/x
  3. Step 3: Cross multiply
    83,102,652.80x = 124,653,979.20 × 52,491,651.20
  4. Step 4: Simplify right side
    83,102,652.80x = 6,543,293,196,858,456
  5. Step 5: Solve for x
    x = 6,543,293,196,858,456/83,102,652.80
  6. Step 6: Final answer
    x = 78,737,476.80

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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.