Home / 71,482,695.03-107,206,327.85-20,365,156.71

Finding the Fourth Proportional to 71,482,695.03, 107,206,327.85 and 20,365,156.71

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Solution

The fourth proportional to 71,482,695.03, 107,206,327.85 and 20,365,156.71 is: 30,542,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,482,695.03 : 107,206,327.85 = 20,365,156.71 : x
  2. Step 2: Convert to fraction form
    71,482,695.03/107,206,327.85 = 20,365,156.71/x
  3. Step 3: Cross multiply
    71,482,695.03x = 107,206,327.85 × 20,365,156.71
  4. Step 4: Simplify right side
    71,482,695.03x = 2,183,273,666,867,061.75
  5. Step 5: Solve for x
    x = 2,183,273,666,867,061.75/71,482,695.03
  6. Step 6: Final answer
    x = 30,542,688.21

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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.