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Finding the Third Proportional to 54,821,630 and 121,897,872

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Solution

The third proportional to 54,821,630 and 121,897,872 is: 271,044,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,821,630 : 121,897,872 = 121,897,872 : x
  2. Step 2: Convert to fraction form
    54,821,630/121,897,872 = 121,897,872/x
  3. Step 3: Cross multiply
    54,821,630x = 121,897,872 × 121,897,872
  4. Step 4: Simplify right side
    54,821,630x = 14,859,091,198,128,384
  5. Step 5: Solve for x
    x = 14,859,091,198,128,384/54,821,630
  6. Step 6: Final answer
    x = 271,044,315.87

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.