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Finding the Fourth Proportional to 8,314,815.28, 11,482,369.02 and 7,861,958.92

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Solution

The fourth proportional to 8,314,815.28, 11,482,369.02 and 7,861,958.92 is: 10,856,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314,815.28 : 11,482,369.02 = 7,861,958.92 : x
  2. Step 2: Convert to fraction form
    8,314,815.28/11,482,369.02 = 7,861,958.92/x
  3. Step 3: Cross multiply
    8,314,815.28x = 11,482,369.02 × 7,861,958.92
  4. Step 4: Simplify right side
    8,314,815.28x = 90,273,913,539,520.66
  5. Step 5: Solve for x
    x = 90,273,913,539,520.66/8,314,815.28
  6. Step 6: Final answer
    x = 10,856,995.68

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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.