Home / 221,436,791.70-332,155,187.55-129,225,873.30

Finding the Fourth Proportional to 221,436,791.70, 332,155,187.55 and 129,225,873.30

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Solution

The fourth proportional to 221,436,791.70, 332,155,187.55 and 129,225,873.30 is: 193,838,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,436,791.70 : 332,155,187.55 = 129,225,873.30 : x
  2. Step 2: Convert to fraction form
    221,436,791.70/332,155,187.55 = 129,225,873.30/x
  3. Step 3: Cross multiply
    221,436,791.70x = 332,155,187.55 × 129,225,873.30
  4. Step 4: Simplify right side
    221,436,791.70x = 42,923,044,182,274,040
  5. Step 5: Solve for x
    x = 42,923,044,182,274,040/221,436,791.70
  6. Step 6: Final answer
    x = 193,838,809.95

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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.