Home / 89,025,821.60-133,538,732.40-73,720,320.80

Finding the Fourth Proportional to 89,025,821.60, 133,538,732.40 and 73,720,320.80

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Solution

The fourth proportional to 89,025,821.60, 133,538,732.40 and 73,720,320.80 is: 110,580,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,025,821.60 : 133,538,732.40 = 73,720,320.80 : x
  2. Step 2: Convert to fraction form
    89,025,821.60/133,538,732.40 = 73,720,320.80/x
  3. Step 3: Cross multiply
    89,025,821.60x = 133,538,732.40 × 73,720,320.80
  4. Step 4: Simplify right side
    89,025,821.60x = 9,844,518,191,753,354
  5. Step 5: Solve for x
    x = 9,844,518,191,753,354/89,025,821.60
  6. Step 6: Final answer
    x = 110,580,481.20

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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.