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Finding the Third Proportional to 20,715,659 and 31,361,393

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Solution

The third proportional to 20,715,659 and 31,361,393 is: 47,477,947.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,715,659 : 31,361,393 = 31,361,393 : x
  2. Step 2: Convert to fraction form
    20,715,659/31,361,393 = 31,361,393/x
  3. Step 3: Cross multiply
    20,715,659x = 31,361,393 × 31,361,393
  4. Step 4: Simplify right side
    20,715,659x = 983,536,970,900,449
  5. Step 5: Solve for x
    x = 983,536,970,900,449/20,715,659
  6. Step 6: Final answer
    x = 47,477,947.52

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.