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Finding the Third Proportional to 79,666,376 and 171,439,658

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Solution

The third proportional to 79,666,376 and 171,439,658 is: 368,933,015.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,666,376 : 171,439,658 = 171,439,658 : x
  2. Step 2: Convert to fraction form
    79,666,376/171,439,658 = 171,439,658/x
  3. Step 3: Cross multiply
    79,666,376x = 171,439,658 × 171,439,658
  4. Step 4: Simplify right side
    79,666,376x = 29,391,556,335,156,964
  5. Step 5: Solve for x
    x = 29,391,556,335,156,964/79,666,376
  6. Step 6: Final answer
    x = 368,933,015.54

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.