Home / 77,285,569.12-106,654,909.33-42,003,374.04

Finding the Fourth Proportional to 77,285,569.12, 106,654,909.33 and 42,003,374.04

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Solution

The fourth proportional to 77,285,569.12, 106,654,909.33 and 42,003,374.04 is: 57,965,103.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,285,569.12 : 106,654,909.33 = 42,003,374.04 : x
  2. Step 2: Convert to fraction form
    77,285,569.12/106,654,909.33 = 42,003,374.04/x
  3. Step 3: Cross multiply
    77,285,569.12x = 106,654,909.33 × 42,003,374.04
  4. Step 4: Simplify right side
    77,285,569.12x = 4,479,866,049,156,850.50
  5. Step 5: Solve for x
    x = 4,479,866,049,156,850.50/77,285,569.12
  6. Step 6: Final answer
    x = 57,965,103.97

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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.