Home / 21,287,635.20-31,894,711.20-9,904,737.60

Finding the Fourth Proportional to 21,287,635.20, 31,894,711.20 and 9,904,737.60

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Solution

The fourth proportional to 21,287,635.20, 31,894,711.20 and 9,904,737.60 is: 14,840,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,287,635.20 : 31,894,711.20 = 9,904,737.60 : x
  2. Step 2: Convert to fraction form
    21,287,635.20/31,894,711.20 = 9,904,737.60/x
  3. Step 3: Cross multiply
    21,287,635.20x = 31,894,711.20 × 9,904,737.60
  4. Step 4: Simplify right side
    21,287,635.20x = 315,908,745,263,781.12
  5. Step 5: Solve for x
    x = 315,908,745,263,781.12/21,287,635.20
  6. Step 6: Final answer
    x = 14,840,011.22

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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.