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Finding the Third Proportional to 69,896,539 and 109,408,072

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Solution

The third proportional to 69,896,539 and 109,408,072 is: 171,254,920.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,896,539 : 109,408,072 = 109,408,072 : x
  2. Step 2: Convert to fraction form
    69,896,539/109,408,072 = 109,408,072/x
  3. Step 3: Cross multiply
    69,896,539x = 109,408,072 × 109,408,072
  4. Step 4: Simplify right side
    69,896,539x = 11,970,126,218,757,184
  5. Step 5: Solve for x
    x = 11,970,126,218,757,184/69,896,539
  6. Step 6: Final answer
    x = 171,254,920.34

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.