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Finding the Third Proportional to 80,805,872 and 172,956,928

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Solution

The third proportional to 80,805,872 and 172,956,928 is: 370,197,093.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,805,872 : 172,956,928 = 172,956,928 : x
  2. Step 2: Convert to fraction form
    80,805,872/172,956,928 = 172,956,928/x
  3. Step 3: Cross multiply
    80,805,872x = 172,956,928 × 172,956,928
  4. Step 4: Simplify right side
    80,805,872x = 29,914,098,943,197,184
  5. Step 5: Solve for x
    x = 29,914,098,943,197,184/80,805,872
  6. Step 6: Final answer
    x = 370,197,093.39

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.