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Finding the Third Proportional to 13,242,306 and 20,512,999

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Solution

The third proportional to 13,242,306 and 20,512,999 is: 31,775,668.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242,306 : 20,512,999 = 20,512,999 : x
  2. Step 2: Convert to fraction form
    13,242,306/20,512,999 = 20,512,999/x
  3. Step 3: Cross multiply
    13,242,306x = 20,512,999 × 20,512,999
  4. Step 4: Simplify right side
    13,242,306x = 420,783,127,974,001
  5. Step 5: Solve for x
    x = 420,783,127,974,001/13,242,306
  6. Step 6: Final answer
    x = 31,775,668.68

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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.