Home / 20,737,272.70-31,105,909.06-18,753,226.30

Finding the Fourth Proportional to 20,737,272.70, 31,105,909.06 and 18,753,226.30

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Solution

The fourth proportional to 20,737,272.70, 31,105,909.06 and 18,753,226.30 is: 28,129,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,272.70 : 31,105,909.06 = 18,753,226.30 : x
  2. Step 2: Convert to fraction form
    20,737,272.70/31,105,909.06 = 18,753,226.30/x
  3. Step 3: Cross multiply
    20,737,272.70x = 31,105,909.06 × 18,753,226.30
  4. Step 4: Simplify right side
    20,737,272.70x = 583,336,151,869,400.25
  5. Step 5: Solve for x
    x = 583,336,151,869,400.25/20,737,272.70
  6. Step 6: Final answer
    x = 28,129,839.46

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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.