Home / 121,321,697-181,982,545.50-40,542,665

Finding the Fourth Proportional to 121,321,697, 181,982,545.50 and 40,542,665

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Solution

The fourth proportional to 121,321,697, 181,982,545.50 and 40,542,665 is: 60,813,997.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,321,697 : 181,982,545.50 = 40,542,665 : x
  2. Step 2: Convert to fraction form
    121,321,697/181,982,545.50 = 40,542,665/x
  3. Step 3: Cross multiply
    121,321,697x = 181,982,545.50 × 40,542,665
  4. Step 4: Simplify right side
    121,321,697x = 7,378,057,378,053,758
  5. Step 5: Solve for x
    x = 7,378,057,378,053,758/121,321,697
  6. Step 6: Final answer
    x = 60,813,997.50

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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.