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Finding the Third Proportional to 8,466,320 and 12,778,839

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Solution

The third proportional to 8,466,320 and 12,778,839 is: 19,288,040.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466,320 : 12,778,839 = 12,778,839 : x
  2. Step 2: Convert to fraction form
    8,466,320/12,778,839 = 12,778,839/x
  3. Step 3: Cross multiply
    8,466,320x = 12,778,839 × 12,778,839
  4. Step 4: Simplify right side
    8,466,320x = 163,298,726,187,921
  5. Step 5: Solve for x
    x = 163,298,726,187,921/8,466,320
  6. Step 6: Final answer
    x = 19,288,040.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.