Home / 431,674,136.20-647,511,204.30-356,091,416.20

Finding the Fourth Proportional to 431,674,136.20, 647,511,204.30 and 356,091,416.20

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Solution

The fourth proportional to 431,674,136.20, 647,511,204.30 and 356,091,416.20 is: 534,137,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,674,136.20 : 647,511,204.30 = 356,091,416.20 : x
  2. Step 2: Convert to fraction form
    431,674,136.20/647,511,204.30 = 356,091,416.20/x
  3. Step 3: Cross multiply
    431,674,136.20x = 647,511,204.30 × 356,091,416.20
  4. Step 4: Simplify right side
    431,674,136.20x = 230,573,181,744,554,496
  5. Step 5: Solve for x
    x = 230,573,181,744,554,496/431,674,136.20
  6. Step 6: Final answer
    x = 534,137,124.30

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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.