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Finding the Third Proportional to 8,538,778 and 13,207,173

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Solution

The third proportional to 8,538,778 and 13,207,173 is: 20,427,913.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538,778 : 13,207,173 = 13,207,173 : x
  2. Step 2: Convert to fraction form
    8,538,778/13,207,173 = 13,207,173/x
  3. Step 3: Cross multiply
    8,538,778x = 13,207,173 × 13,207,173
  4. Step 4: Simplify right side
    8,538,778x = 174,429,418,651,929
  5. Step 5: Solve for x
    x = 174,429,418,651,929/8,538,778
  6. Step 6: Final answer
    x = 20,427,913.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.