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Finding the Third Proportional to 79,682,940 and 117,245,831

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Solution

The third proportional to 79,682,940 and 117,245,831 is: 172,516,035.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,682,940 : 117,245,831 = 117,245,831 : x
  2. Step 2: Convert to fraction form
    79,682,940/117,245,831 = 117,245,831/x
  3. Step 3: Cross multiply
    79,682,940x = 117,245,831 × 117,245,831
  4. Step 4: Simplify right side
    79,682,940x = 13,746,584,886,880,560
  5. Step 5: Solve for x
    x = 13,746,584,886,880,560/79,682,940
  6. Step 6: Final answer
    x = 172,516,035.26

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.