Home / 381,609,165.20-572,413,747.80-260,676,813.20

Finding the Fourth Proportional to 381,609,165.20, 572,413,747.80 and 260,676,813.20

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Solution

The fourth proportional to 381,609,165.20, 572,413,747.80 and 260,676,813.20 is: 391,015,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,609,165.20 : 572,413,747.80 = 260,676,813.20 : x
  2. Step 2: Convert to fraction form
    381,609,165.20/572,413,747.80 = 260,676,813.20/x
  3. Step 3: Cross multiply
    381,609,165.20x = 572,413,747.80 × 260,676,813.20
  4. Step 4: Simplify right side
    381,609,165.20x = 149,214,991,608,372,480
  5. Step 5: Solve for x
    x = 149,214,991,608,372,480/381,609,165.20
  6. Step 6: Final answer
    x = 391,015,219.80

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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.