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Finding the Third Proportional to 38,135,286 and 81,259,680

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Solution

The third proportional to 38,135,286 and 81,259,680 is: 173,150,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135,286 : 81,259,680 = 81,259,680 : x
  2. Step 2: Convert to fraction form
    38,135,286/81,259,680 = 81,259,680/x
  3. Step 3: Cross multiply
    38,135,286x = 81,259,680 × 81,259,680
  4. Step 4: Simplify right side
    38,135,286x = 6,603,135,593,702,400
  5. Step 5: Solve for x
    x = 6,603,135,593,702,400/38,135,286
  6. Step 6: Final answer
    x = 173,150,283.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.