Home / 81,328,166.20-122,086,727.70-49,016,553.40

Finding the Fourth Proportional to 81,328,166.20, 122,086,727.70 and 49,016,553.40

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Solution

The fourth proportional to 81,328,166.20, 122,086,727.70 and 49,016,553.40 is: 73,581,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,328,166.20 : 122,086,727.70 = 49,016,553.40 : x
  2. Step 2: Convert to fraction form
    81,328,166.20/122,086,727.70 = 49,016,553.40/x
  3. Step 3: Cross multiply
    81,328,166.20x = 122,086,727.70 × 49,016,553.40
  4. Step 4: Simplify right side
    81,328,166.20x = 5,984,270,607,738,309
  5. Step 5: Solve for x
    x = 5,984,270,607,738,309/81,328,166.20
  6. Step 6: Final answer
    x = 73,581,772.31

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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.