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Finding the Third Proportional to 13,217,418 and 20,217,303

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Solution

The third proportional to 13,217,418 and 20,217,303 is: 30,924,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217,418 : 20,217,303 = 20,217,303 : x
  2. Step 2: Convert to fraction form
    13,217,418/20,217,303 = 20,217,303/x
  3. Step 3: Cross multiply
    13,217,418x = 20,217,303 × 20,217,303
  4. Step 4: Simplify right side
    13,217,418x = 408,739,340,593,809
  5. Step 5: Solve for x
    x = 408,739,340,593,809/13,217,418
  6. Step 6: Final answer
    x = 30,924,295.55

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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.