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Finding the Third Proportional to 8,685,631 and 18,800,992

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Solution

The third proportional to 8,685,631 and 18,800,992 is: 40,696,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685,631 : 18,800,992 = 18,800,992 : x
  2. Step 2: Convert to fraction form
    8,685,631/18,800,992 = 18,800,992/x
  3. Step 3: Cross multiply
    8,685,631x = 18,800,992 × 18,800,992
  4. Step 4: Simplify right side
    8,685,631x = 353,477,300,184,064
  5. Step 5: Solve for x
    x = 353,477,300,184,064/8,685,631
  6. Step 6: Final answer
    x = 40,696,789.93

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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.