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Finding the Third Proportional to 12,215,880 and 18,897,750

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Solution

The third proportional to 12,215,880 and 18,897,750 is: 29,234,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215,880 : 18,897,750 = 18,897,750 : x
  2. Step 2: Convert to fraction form
    12,215,880/18,897,750 = 18,897,750/x
  3. Step 3: Cross multiply
    12,215,880x = 18,897,750 × 18,897,750
  4. Step 4: Simplify right side
    12,215,880x = 357,124,955,062,500
  5. Step 5: Solve for x
    x = 357,124,955,062,500/12,215,880
  6. Step 6: Final answer
    x = 29,234,484.54

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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.