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Finding the Third Proportional to 8,691,580 and 18,351,890

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Solution

The third proportional to 8,691,580 and 18,351,890 is: 38,749,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691,580 : 18,351,890 = 18,351,890 : x
  2. Step 2: Convert to fraction form
    8,691,580/18,351,890 = 18,351,890/x
  3. Step 3: Cross multiply
    8,691,580x = 18,351,890 × 18,351,890
  4. Step 4: Simplify right side
    8,691,580x = 336,791,866,572,100
  5. Step 5: Solve for x
    x = 336,791,866,572,100/8,691,580
  6. Step 6: Final answer
    x = 38,749,210.91

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.