Home / 81,757,443.90-122,687,221.56-54,482,874.81

Finding the Fourth Proportional to 81,757,443.90, 122,687,221.56 and 54,482,874.81

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Solution

The fourth proportional to 81,757,443.90, 122,687,221.56 and 54,482,874.81 is: 81,758,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,757,443.90 : 122,687,221.56 = 54,482,874.81 : x
  2. Step 2: Convert to fraction form
    81,757,443.90/122,687,221.56 = 54,482,874.81/x
  3. Step 3: Cross multiply
    81,757,443.90x = 122,687,221.56 × 54,482,874.81
  4. Step 4: Simplify right side
    81,757,443.90x = 6,684,352,533,040,213
  5. Step 5: Solve for x
    x = 6,684,352,533,040,213/81,757,443.90
  6. Step 6: Final answer
    x = 81,758,335.56

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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.