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Finding the Third Proportional to 79,821,801 and 172,102,941

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Solution

The third proportional to 79,821,801 and 172,102,941 is: 371,069,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821,801 : 172,102,941 = 172,102,941 : x
  2. Step 2: Convert to fraction form
    79,821,801/172,102,941 = 172,102,941/x
  3. Step 3: Cross multiply
    79,821,801x = 172,102,941 × 172,102,941
  4. Step 4: Simplify right side
    79,821,801x = 29,619,422,300,849,480
  5. Step 5: Solve for x
    x = 29,619,422,300,849,480/79,821,801
  6. Step 6: Final answer
    x = 371,069,331.06

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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.