Home / 120,193,489.38-179,279,691.83-109,159,404.11

Finding the Fourth Proportional to 120,193,489.38, 179,279,691.83 and 109,159,404.11

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Solution

The fourth proportional to 120,193,489.38, 179,279,691.83 and 109,159,404.11 is: 162,821,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,193,489.38 : 179,279,691.83 = 109,159,404.11 : x
  2. Step 2: Convert to fraction form
    120,193,489.38/179,279,691.83 = 109,159,404.11/x
  3. Step 3: Cross multiply
    120,193,489.38x = 179,279,691.83 × 109,159,404.11
  4. Step 4: Simplify right side
    120,193,489.38x = 19,570,064,327,745,040
  5. Step 5: Solve for x
    x = 19,570,064,327,745,040/120,193,489.38
  6. Step 6: Final answer
    x = 162,821,334.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.