Home / 120,372,775.11-166,165,285.28-81,267,523.83

Finding the Fourth Proportional to 120,372,775.11, 166,165,285.28 and 81,267,523.83

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Solution

The fourth proportional to 120,372,775.11, 166,165,285.28 and 81,267,523.83 is: 112,183,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,775.11 : 166,165,285.28 = 81,267,523.83 : x
  2. Step 2: Convert to fraction form
    120,372,775.11/166,165,285.28 = 81,267,523.83/x
  3. Step 3: Cross multiply
    120,372,775.11x = 166,165,285.28 × 81,267,523.83
  4. Step 4: Simplify right side
    120,372,775.11x = 13,503,841,280,804,810
  5. Step 5: Solve for x
    x = 13,503,841,280,804,810/120,372,775.11
  6. Step 6: Final answer
    x = 112,183,517.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.