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Finding the Third Proportional to 8,638,687 and 18,594,311

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Solution

The third proportional to 8,638,687 and 18,594,311 is: 40,023,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,638,687 : 18,594,311 = 18,594,311 : x
  2. Step 2: Convert to fraction form
    8,638,687/18,594,311 = 18,594,311/x
  3. Step 3: Cross multiply
    8,638,687x = 18,594,311 × 18,594,311
  4. Step 4: Simplify right side
    8,638,687x = 345,748,401,564,721
  5. Step 5: Solve for x
    x = 345,748,401,564,721/8,638,687
  6. Step 6: Final answer
    x = 40,023,258.35

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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.