Home / 81,684,562.70-122,377,544.85-66,456,044.30

Finding the Fourth Proportional to 81,684,562.70, 122,377,544.85 and 66,456,044.30

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Solution

The fourth proportional to 81,684,562.70, 122,377,544.85 and 66,456,044.30 is: 99,562,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,684,562.70 : 122,377,544.85 = 66,456,044.30 : x
  2. Step 2: Convert to fraction form
    81,684,562.70/122,377,544.85 = 66,456,044.30/x
  3. Step 3: Cross multiply
    81,684,562.70x = 122,377,544.85 × 66,456,044.30
  4. Step 4: Simplify right side
    81,684,562.70x = 8,132,727,541,876,836
  5. Step 5: Solve for x
    x = 8,132,727,541,876,836/81,684,562.70
  6. Step 6: Final answer
    x = 99,562,601.22

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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.