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Finding the Third Proportional to 117,874,917 and 247,965,885

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Solution

The third proportional to 117,874,917 and 247,965,885 is: 521,629,891.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,874,917 : 247,965,885 = 247,965,885 : x
  2. Step 2: Convert to fraction form
    117,874,917/247,965,885 = 247,965,885/x
  3. Step 3: Cross multiply
    117,874,917x = 247,965,885 × 247,965,885
  4. Step 4: Simplify right side
    117,874,917x = 61,487,080,123,833,224
  5. Step 5: Solve for x
    x = 61,487,080,123,833,224/117,874,917
  6. Step 6: Final answer
    x = 521,629,891.15

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.