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Finding the Third Proportional to 121,335,372 and 259,676,847

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Solution

The third proportional to 121,335,372 and 259,676,847 is: 555,749,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,335,372 : 259,676,847 = 259,676,847 : x
  2. Step 2: Convert to fraction form
    121,335,372/259,676,847 = 259,676,847/x
  3. Step 3: Cross multiply
    121,335,372x = 259,676,847 × 259,676,847
  4. Step 4: Simplify right side
    121,335,372x = 67,432,064,867,861,408
  5. Step 5: Solve for x
    x = 67,432,064,867,861,408/121,335,372
  6. Step 6: Final answer
    x = 555,749,438.57

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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.