Home / 18,727,248.20-28,069,877.10-7,942,713.80

Finding the Fourth Proportional to 18,727,248.20, 28,069,877.10 and 7,942,713.80

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Solution

The fourth proportional to 18,727,248.20, 28,069,877.10 and 7,942,713.80 is: 11,905,166.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727,248.20 : 28,069,877.10 = 7,942,713.80 : x
  2. Step 2: Convert to fraction form
    18,727,248.20/28,069,877.10 = 7,942,713.80/x
  3. Step 3: Cross multiply
    18,727,248.20x = 28,069,877.10 × 7,942,713.80
  4. Step 4: Simplify right side
    18,727,248.20x = 222,951,000,206,474
  5. Step 5: Solve for x
    x = 222,951,000,206,474/18,727,248.20
  6. Step 6: Final answer
    x = 11,905,166.09

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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.