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Finding the Third Proportional to 79,823,442 and 172,420,260

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Solution

The third proportional to 79,823,442 and 172,420,260 is: 372,431,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,823,442 : 172,420,260 = 172,420,260 : x
  2. Step 2: Convert to fraction form
    79,823,442/172,420,260 = 172,420,260/x
  3. Step 3: Cross multiply
    79,823,442x = 172,420,260 × 172,420,260
  4. Step 4: Simplify right side
    79,823,442x = 29,728,746,058,467,600
  5. Step 5: Solve for x
    x = 29,728,746,058,467,600/79,823,442
  6. Step 6: Final answer
    x = 372,431,272.24

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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.