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Finding the Third Proportional to 15,132,730 and 21,234,218

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Solution

The third proportional to 15,132,730 and 21,234,218 is: 29,795,814.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132,730 : 21,234,218 = 21,234,218 : x
  2. Step 2: Convert to fraction form
    15,132,730/21,234,218 = 21,234,218/x
  3. Step 3: Cross multiply
    15,132,730x = 21,234,218 × 21,234,218
  4. Step 4: Simplify right side
    15,132,730x = 450,892,014,071,524
  5. Step 5: Solve for x
    x = 450,892,014,071,524/15,132,730
  6. Step 6: Final answer
    x = 29,795,814.38

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.