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Finding the Third Proportional to 21,379,491 and 29,046,654

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Solution

The third proportional to 21,379,491 and 29,046,654 is: 39,463,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379,491 : 29,046,654 = 29,046,654 : x
  2. Step 2: Convert to fraction form
    21,379,491/29,046,654 = 29,046,654/x
  3. Step 3: Cross multiply
    21,379,491x = 29,046,654 × 29,046,654
  4. Step 4: Simplify right side
    21,379,491x = 843,708,108,595,716
  5. Step 5: Solve for x
    x = 843,708,108,595,716/21,379,491
  6. Step 6: Final answer
    x = 39,463,432.90

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.