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Finding the Third Proportional to 79,419,310 and 172,026,309

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Solution

The third proportional to 79,419,310 and 172,026,309 is: 372,617,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419,310 : 172,026,309 = 172,026,309 : x
  2. Step 2: Convert to fraction form
    79,419,310/172,026,309 = 172,026,309/x
  3. Step 3: Cross multiply
    79,419,310x = 172,026,309 × 172,026,309
  4. Step 4: Simplify right side
    79,419,310x = 29,593,050,988,163,480
  5. Step 5: Solve for x
    x = 29,593,050,988,163,480/79,419,310
  6. Step 6: Final answer
    x = 372,617,830.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.