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Finding the Third Proportional to 39,922,389 and 81,291,843

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Solution

The third proportional to 39,922,389 and 81,291,843 is: 165,530,267.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922,389 : 81,291,843 = 81,291,843 : x
  2. Step 2: Convert to fraction form
    39,922,389/81,291,843 = 81,291,843/x
  3. Step 3: Cross multiply
    39,922,389x = 81,291,843 × 81,291,843
  4. Step 4: Simplify right side
    39,922,389x = 6,608,363,738,336,649
  5. Step 5: Solve for x
    x = 6,608,363,738,336,649/39,922,389
  6. Step 6: Final answer
    x = 165,530,267.70

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.