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Finding the Third Proportional to 8,644,780 and 18,630,272

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Solution

The third proportional to 8,644,780 and 18,630,272 is: 40,149,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644,780 : 18,630,272 = 18,630,272 : x
  2. Step 2: Convert to fraction form
    8,644,780/18,630,272 = 18,630,272/x
  3. Step 3: Cross multiply
    8,644,780x = 18,630,272 × 18,630,272
  4. Step 4: Simplify right side
    8,644,780x = 347,087,034,793,984
  5. Step 5: Solve for x
    x = 347,087,034,793,984/8,644,780
  6. Step 6: Final answer
    x = 40,149,897.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.