Home / 8,578,474.30-12,867,711.45-5,177,251.90

Finding the Fourth Proportional to 8,578,474.30, 12,867,711.45 and 5,177,251.90

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Solution

The fourth proportional to 8,578,474.30, 12,867,711.45 and 5,177,251.90 is: 7,765,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578,474.30 : 12,867,711.45 = 5,177,251.90 : x
  2. Step 2: Convert to fraction form
    8,578,474.30/12,867,711.45 = 5,177,251.90/x
  3. Step 3: Cross multiply
    8,578,474.30x = 12,867,711.45 × 5,177,251.90
  4. Step 4: Simplify right side
    8,578,474.30x = 66,619,383,553,164.26
  5. Step 5: Solve for x
    x = 66,619,383,553,164.26/8,578,474.30
  6. Step 6: Final answer
    x = 7,765,877.85

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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.