Home / 279,676,876.20-419,515,314.30-221,856,095.40

Finding the Fourth Proportional to 279,676,876.20, 419,515,314.30 and 221,856,095.40

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Solution

The fourth proportional to 279,676,876.20, 419,515,314.30 and 221,856,095.40 is: 332,784,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,676,876.20 : 419,515,314.30 = 221,856,095.40 : x
  2. Step 2: Convert to fraction form
    279,676,876.20/419,515,314.30 = 221,856,095.40/x
  3. Step 3: Cross multiply
    279,676,876.20x = 419,515,314.30 × 221,856,095.40
  4. Step 4: Simplify right side
    279,676,876.20x = 93,072,029,591,101,792
  5. Step 5: Solve for x
    x = 93,072,029,591,101,792/279,676,876.20
  6. Step 6: Final answer
    x = 332,784,143.10

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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.