Home / 488,957,473-674,857,164.90-280,253,499.40

Finding the Fourth Proportional to 488,957,473, 674,857,164.90 and 280,253,499.40

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Solution

The fourth proportional to 488,957,473, 674,857,164.90 and 280,253,499.40 is: 386,804,768.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,957,473 : 674,857,164.90 = 280,253,499.40 : x
  2. Step 2: Convert to fraction form
    488,957,473/674,857,164.90 = 280,253,499.40/x
  3. Step 3: Cross multiply
    488,957,473x = 674,857,164.90 × 280,253,499.40
  4. Step 4: Simplify right side
    488,957,473x = 189,131,082,058,387,840
  5. Step 5: Solve for x
    x = 189,131,082,058,387,840/488,957,473
  6. Step 6: Final answer
    x = 386,804,768.31

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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.