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Finding the Third Proportional to 13,830,416 and 20,297,215

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Solution

The third proportional to 13,830,416 and 20,297,215 is: 29,787,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830,416 : 20,297,215 = 20,297,215 : x
  2. Step 2: Convert to fraction form
    13,830,416/20,297,215 = 20,297,215/x
  3. Step 3: Cross multiply
    13,830,416x = 20,297,215 × 20,297,215
  4. Step 4: Simplify right side
    13,830,416x = 411,976,936,756,225
  5. Step 5: Solve for x
    x = 411,976,936,756,225/13,830,416
  6. Step 6: Final answer
    x = 29,787,747.29

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.