Home / 20,757,214.63-31,138,799.24-6,381,489.61

Finding the Fourth Proportional to 20,757,214.63, 31,138,799.24 and 6,381,489.61

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Solution

The fourth proportional to 20,757,214.63, 31,138,799.24 and 6,381,489.61 is: 9,573,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,214.63 : 31,138,799.24 = 6,381,489.61 : x
  2. Step 2: Convert to fraction form
    20,757,214.63/31,138,799.24 = 6,381,489.61/x
  3. Step 3: Cross multiply
    20,757,214.63x = 31,138,799.24 × 6,381,489.61
  4. Step 4: Simplify right side
    20,757,214.63x = 198,711,923,817,935.91
  5. Step 5: Solve for x
    x = 198,711,923,817,935.91/20,757,214.63
  6. Step 6: Final answer
    x = 9,573,149.74

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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.