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Finding the Third Proportional to 21,366,638 and 43,488,408

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Solution

The third proportional to 21,366,638 and 43,488,408 is: 88,513,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366,638 : 43,488,408 = 43,488,408 : x
  2. Step 2: Convert to fraction form
    21,366,638/43,488,408 = 43,488,408/x
  3. Step 3: Cross multiply
    21,366,638x = 43,488,408 × 43,488,408
  4. Step 4: Simplify right side
    21,366,638x = 1,891,241,630,374,464
  5. Step 5: Solve for x
    x = 1,891,241,630,374,464/21,366,638
  6. Step 6: Final answer
    x = 88,513,767.60

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.