Home / 279,936,401.10-419,904,601.65-192,260,445.90

Finding the Fourth Proportional to 279,936,401.10, 419,904,601.65 and 192,260,445.90

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Solution

The fourth proportional to 279,936,401.10, 419,904,601.65 and 192,260,445.90 is: 288,390,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,401.10 : 419,904,601.65 = 192,260,445.90 : x
  2. Step 2: Convert to fraction form
    279,936,401.10/419,904,601.65 = 192,260,445.90/x
  3. Step 3: Cross multiply
    279,936,401.10x = 419,904,601.65 × 192,260,445.90
  4. Step 4: Simplify right side
    279,936,401.10x = 80,731,045,948,690,880
  5. Step 5: Solve for x
    x = 80,731,045,948,690,880/279,936,401.10
  6. Step 6: Final answer
    x = 288,390,668.85

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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.