Home / 488,957,479.50-674,857,173.87-280,253,505.90

Finding the Fourth Proportional to 488,957,479.50, 674,857,173.87 and 280,253,505.90

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Solution

The fourth proportional to 488,957,479.50, 674,857,173.87 and 280,253,505.90 is: 386,804,777.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,957,479.50 : 674,857,173.87 = 280,253,505.90 : x
  2. Step 2: Convert to fraction form
    488,957,479.50/674,857,173.87 = 280,253,505.90/x
  3. Step 3: Cross multiply
    488,957,479.50x = 674,857,173.87 × 280,253,505.90
  4. Step 4: Simplify right side
    488,957,479.50x = 189,131,088,958,833,344
  5. Step 5: Solve for x
    x = 189,131,088,958,833,344/488,957,479.50
  6. Step 6: Final answer
    x = 386,804,777.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.