Home / 87,268,212.88-120,431,061.72-48,111,390.79

Finding the Fourth Proportional to 87,268,212.88, 120,431,061.72 and 48,111,390.79

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Solution

The fourth proportional to 87,268,212.88, 120,431,061.72 and 48,111,390.79 is: 66,394,230.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,268,212.88 : 120,431,061.72 = 48,111,390.79 : x
  2. Step 2: Convert to fraction form
    87,268,212.88/120,431,061.72 = 48,111,390.79/x
  3. Step 3: Cross multiply
    87,268,212.88x = 120,431,061.72 × 48,111,390.79
  4. Step 4: Simplify right side
    87,268,212.88x = 5,794,105,873,063,374
  5. Step 5: Solve for x
    x = 5,794,105,873,063,374/87,268,212.88
  6. Step 6: Final answer
    x = 66,394,230.87

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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.