Home / 81,777,564.18-122,667,414.74-27,190,149.72

Finding the Fourth Proportional to 81,777,564.18, 122,667,414.74 and 27,190,149.72

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Solution

The fourth proportional to 81,777,564.18, 122,667,414.74 and 27,190,149.72 is: 40,785,579.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,564.18 : 122,667,414.74 = 27,190,149.72 : x
  2. Step 2: Convert to fraction form
    81,777,564.18/122,667,414.74 = 27,190,149.72/x
  3. Step 3: Cross multiply
    81,777,564.18x = 122,667,414.74 × 27,190,149.72
  4. Step 4: Simplify right side
    81,777,564.18x = 3,335,345,372,545,934.50
  5. Step 5: Solve for x
    x = 3,335,345,372,545,934.50/81,777,564.18
  6. Step 6: Final answer
    x = 40,785,579.83

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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.