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Finding the Third Proportional to 11,929,736 and 18,920,581

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Solution

The third proportional to 11,929,736 and 18,920,581 is: 30,008,072.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929,736 : 18,920,581 = 18,920,581 : x
  2. Step 2: Convert to fraction form
    11,929,736/18,920,581 = 18,920,581/x
  3. Step 3: Cross multiply
    11,929,736x = 18,920,581 × 18,920,581
  4. Step 4: Simplify right side
    11,929,736x = 357,988,385,377,561
  5. Step 5: Solve for x
    x = 357,988,385,377,561/11,929,736
  6. Step 6: Final answer
    x = 30,008,072.72

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.