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Finding the Third Proportional to 13,137,121 and 20,919,834

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Solution

The third proportional to 13,137,121 and 20,919,834 is: 33,313,193.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137,121 : 20,919,834 = 20,919,834 : x
  2. Step 2: Convert to fraction form
    13,137,121/20,919,834 = 20,919,834/x
  3. Step 3: Cross multiply
    13,137,121x = 20,919,834 × 20,919,834
  4. Step 4: Simplify right side
    13,137,121x = 437,639,454,587,556
  5. Step 5: Solve for x
    x = 437,639,454,587,556/13,137,121
  6. Step 6: Final answer
    x = 33,313,193.55

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.