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Finding the Third Proportional to 13,212,423 and 20,213,523

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Solution

The third proportional to 13,212,423 and 20,213,523 is: 30,924,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212,423 : 20,213,523 = 20,213,523 : x
  2. Step 2: Convert to fraction form
    13,212,423/20,213,523 = 20,213,523/x
  3. Step 3: Cross multiply
    13,212,423x = 20,213,523 × 20,213,523
  4. Step 4: Simplify right side
    13,212,423x = 408,586,512,071,529
  5. Step 5: Solve for x
    x = 408,586,512,071,529/13,212,423
  6. Step 6: Final answer
    x = 30,924,419.55

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.