Home / 479,002,475.52-660,898,500.66-280,657,401.30

Finding the Fourth Proportional to 479,002,475.52, 660,898,500.66 and 280,657,401.30

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Solution

The fourth proportional to 479,002,475.52, 660,898,500.66 and 280,657,401.30 is: 387,234,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,002,475.52 : 660,898,500.66 = 280,657,401.30 : x
  2. Step 2: Convert to fraction form
    479,002,475.52/660,898,500.66 = 280,657,401.30/x
  3. Step 3: Cross multiply
    479,002,475.52x = 660,898,500.66 × 280,657,401.30
  4. Step 4: Simplify right side
    479,002,475.52x = 185,486,055,718,301,920
  5. Step 5: Solve for x
    x = 185,486,055,718,301,920/479,002,475.52
  6. Step 6: Final answer
    x = 387,234,023.20

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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.