Home / 38,691,965.20-58,082,645.40-20,776,061.20

Finding the Fourth Proportional to 38,691,965.20, 58,082,645.40 and 20,776,061.20

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Solution

The fourth proportional to 38,691,965.20, 58,082,645.40 and 20,776,061.20 is: 31,188,092.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691,965.20 : 58,082,645.40 = 20,776,061.20 : x
  2. Step 2: Convert to fraction form
    38,691,965.20/58,082,645.40 = 20,776,061.20/x
  3. Step 3: Cross multiply
    38,691,965.20x = 58,082,645.40 × 20,776,061.20
  4. Step 4: Simplify right side
    38,691,965.20x = 1,206,728,595,488,298.50
  5. Step 5: Solve for x
    x = 1,206,728,595,488,298.50/38,691,965.20
  6. Step 6: Final answer
    x = 31,188,092.65

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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.