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Finding the Fourth Proportional to 629,498,408.32, 868,708,640.40 and 347,234,482

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Solution

The fourth proportional to 629,498,408.32, 868,708,640.40 and 347,234,482 is: 479,184,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,498,408.32 : 868,708,640.40 = 347,234,482 : x
  2. Step 2: Convert to fraction form
    629,498,408.32/868,708,640.40 = 347,234,482/x
  3. Step 3: Cross multiply
    629,498,408.32x = 868,708,640.40 × 347,234,482
  4. Step 4: Simplify right side
    629,498,408.32x = 301,645,594,758,218,240
  5. Step 5: Solve for x
    x = 301,645,594,758,218,240/629,498,408.32
  6. Step 6: Final answer
    x = 479,184,046.81

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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.