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Finding the Fourth Proportional to 279,744,000.40, 419,616,000.60 and 274,369,229.20

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Solution

The fourth proportional to 279,744,000.40, 419,616,000.60 and 274,369,229.20 is: 411,553,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,744,000.40 : 419,616,000.60 = 274,369,229.20 : x
  2. Step 2: Convert to fraction form
    279,744,000.40/419,616,000.60 = 274,369,229.20/x
  3. Step 3: Cross multiply
    279,744,000.40x = 419,616,000.60 × 274,369,229.20
  4. Step 4: Simplify right side
    279,744,000.40x = 115,129,718,644,608,736
  5. Step 5: Solve for x
    x = 115,129,718,644,608,736/279,744,000.40
  6. Step 6: Final answer
    x = 411,553,843.80

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1.5x scale

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.