Home / 221,526,863.20-332,589,476.40-129,504,901.60

Finding the Fourth Proportional to 221,526,863.20, 332,589,476.40 and 129,504,901.60

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Solution

The fourth proportional to 221,526,863.20, 332,589,476.40 and 129,504,901.60 is: 194,432,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,526,863.20 : 332,589,476.40 = 129,504,901.60 : x
  2. Step 2: Convert to fraction form
    221,526,863.20/332,589,476.40 = 129,504,901.60/x
  3. Step 3: Cross multiply
    221,526,863.20x = 332,589,476.40 × 129,504,901.60
  4. Step 4: Simplify right side
    221,526,863.20x = 43,071,967,414,377,520
  5. Step 5: Solve for x
    x = 43,071,967,414,377,520/221,526,863.20
  6. Step 6: Final answer
    x = 194,432,254.36

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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.