Home / 1,305,280,666.62-1,957,920,999.92-443,637,658.62

Finding the Fourth Proportional to 1,305,280,666.62, 1,957,920,999.92 and 443,637,658.62

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Solution

The fourth proportional to 1,305,280,666.62, 1,957,920,999.92 and 443,637,658.62 is: 665,456,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,280,666.62 : 1,957,920,999.92 = 443,637,658.62 : x
  2. Step 2: Convert to fraction form
    1,305,280,666.62/1,957,920,999.92 = 443,637,658.62/x
  3. Step 3: Cross multiply
    1,305,280,666.62x = 1,957,920,999.92 × 443,637,658.62
  4. Step 4: Simplify right side
    1,305,280,666.62x = 868,607,488,165,219,840
  5. Step 5: Solve for x
    x = 868,607,488,165,219,840/1,305,280,666.62
  6. Step 6: Final answer
    x = 665,456,487.92

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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.