Home / 81,439,443.52-121,893,306.72-59,868,335.68

Finding the Fourth Proportional to 81,439,443.52, 121,893,306.72 and 59,868,335.68

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Solution

The fourth proportional to 81,439,443.52, 121,893,306.72 and 59,868,335.68 is: 89,607,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,439,443.52 : 121,893,306.72 = 59,868,335.68 : x
  2. Step 2: Convert to fraction form
    81,439,443.52/121,893,306.72 = 59,868,335.68/x
  3. Step 3: Cross multiply
    81,439,443.52x = 121,893,306.72 × 59,868,335.68
  4. Step 4: Simplify right side
    81,439,443.52x = 7,297,549,403,858,160
  5. Step 5: Solve for x
    x = 7,297,549,403,858,160/81,439,443.52
  6. Step 6: Final answer
    x = 89,607,063.71

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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.