Home / 381,609,172.20-572,413,758.30-260,676,820.20

Finding the Fourth Proportional to 381,609,172.20, 572,413,758.30 and 260,676,820.20

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Solution

The fourth proportional to 381,609,172.20, 572,413,758.30 and 260,676,820.20 is: 391,015,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,609,172.20 : 572,413,758.30 = 260,676,820.20 : x
  2. Step 2: Convert to fraction form
    381,609,172.20/572,413,758.30 = 260,676,820.20/x
  3. Step 3: Cross multiply
    381,609,172.20x = 572,413,758.30 × 260,676,820.20
  4. Step 4: Simplify right side
    381,609,172.20x = 149,214,998,352,375,328
  5. Step 5: Solve for x
    x = 149,214,998,352,375,328/381,609,172.20
  6. Step 6: Final answer
    x = 391,015,230.30

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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.