Home / 431,376,002.60-647,064,003.90-140,242,562.60

Finding the Fourth Proportional to 431,376,002.60, 647,064,003.90 and 140,242,562.60

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Solution

The fourth proportional to 431,376,002.60, 647,064,003.90 and 140,242,562.60 is: 210,363,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,376,002.60 : 647,064,003.90 = 140,242,562.60 : x
  2. Step 2: Convert to fraction form
    431,376,002.60/647,064,003.90 = 140,242,562.60/x
  3. Step 3: Cross multiply
    431,376,002.60x = 647,064,003.90 × 140,242,562.60
  4. Step 4: Simplify right side
    431,376,002.60x = 90,745,914,073,152,384
  5. Step 5: Solve for x
    x = 90,745,914,073,152,384/431,376,002.60
  6. Step 6: Final answer
    x = 210,363,843.90

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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.