Home / 87,004,515.07-120,032,248.91-49,814,919.73

Finding the Fourth Proportional to 87,004,515.07, 120,032,248.91 and 49,814,919.73

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Solution

The fourth proportional to 87,004,515.07, 120,032,248.91 and 49,814,919.73 is: 68,725,132.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,004,515.07 : 120,032,248.91 = 49,814,919.73 : x
  2. Step 2: Convert to fraction form
    87,004,515.07/120,032,248.91 = 49,814,919.73/x
  3. Step 3: Cross multiply
    87,004,515.07x = 120,032,248.91 × 49,814,919.73
  4. Step 4: Simplify right side
    87,004,515.07x = 5,979,396,844,463,029
  5. Step 5: Solve for x
    x = 5,979,396,844,463,029/87,004,515.07
  6. Step 6: Final answer
    x = 68,725,132.71

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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.