Home / 431,374,139.40-647,061,209.10-329,337,467.40

Finding the Fourth Proportional to 431,374,139.40, 647,061,209.10 and 329,337,467.40

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Solution

The fourth proportional to 431,374,139.40, 647,061,209.10 and 329,337,467.40 is: 494,006,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,374,139.40 : 647,061,209.10 = 329,337,467.40 : x
  2. Step 2: Convert to fraction form
    431,374,139.40/647,061,209.10 = 329,337,467.40/x
  3. Step 3: Cross multiply
    431,374,139.40x = 647,061,209.10 × 329,337,467.40
  4. Step 4: Simplify right side
    431,374,139.40x = 213,101,499,857,775,840
  5. Step 5: Solve for x
    x = 213,101,499,857,775,840/431,374,139.40
  6. Step 6: Final answer
    x = 494,006,201.10

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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.