Home / 39,123,471.72-58,691,975-13,215,961.68

Finding the Fourth Proportional to 39,123,471.72, 58,691,975 and 13,215,961.68

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Solution

The fourth proportional to 39,123,471.72, 58,691,975 and 13,215,961.68 is: 19,826,228.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,123,471.72 : 58,691,975 = 13,215,961.68 : x
  2. Step 2: Convert to fraction form
    39,123,471.72/58,691,975 = 13,215,961.68/x
  3. Step 3: Cross multiply
    39,123,471.72x = 58,691,975 × 13,215,961.68
  4. Step 4: Simplify right side
    39,123,471.72x = 775,670,892,523,518
  5. Step 5: Solve for x
    x = 775,670,892,523,518/39,123,471.72
  6. Step 6: Final answer
    x = 19,826,228.56

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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.