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Finding the Third Proportional to 8,778,202 and 18,850,689

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Solution

The third proportional to 8,778,202 and 18,850,689 is: 40,480,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778,202 : 18,850,689 = 18,850,689 : x
  2. Step 2: Convert to fraction form
    8,778,202/18,850,689 = 18,850,689/x
  3. Step 3: Cross multiply
    8,778,202x = 18,850,689 × 18,850,689
  4. Step 4: Simplify right side
    8,778,202x = 355,348,475,774,721
  5. Step 5: Solve for x
    x = 355,348,475,774,721/8,778,202
  6. Step 6: Final answer
    x = 40,480,781.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.