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Finding the Third Proportional to 172,910,379 and 267,445,420.50

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Solution

The third proportional to 172,910,379 and 267,445,420.50 is: 413,665,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,910,379 : 267,445,420.50 = 267,445,420.50 : x
  2. Step 2: Convert to fraction form
    172,910,379/267,445,420.50 = 267,445,420.50/x
  3. Step 3: Cross multiply
    172,910,379x = 267,445,420.50 × 267,445,420.50
  4. Step 4: Simplify right side
    172,910,379x = 71,527,052,946,421,824
  5. Step 5: Solve for x
    x = 71,527,052,946,421,824/172,910,379
  6. Step 6: Final answer
    x = 413,665,468.55

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.