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Finding the Third Proportional to 20,157,508 and 31,025,172

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Solution

The third proportional to 20,157,508 and 31,025,172 is: 47,751,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157,508 : 31,025,172 = 31,025,172 : x
  2. Step 2: Convert to fraction form
    20,157,508/31,025,172 = 31,025,172/x
  3. Step 3: Cross multiply
    20,157,508x = 31,025,172 × 31,025,172
  4. Step 4: Simplify right side
    20,157,508x = 962,561,297,629,584
  5. Step 5: Solve for x
    x = 962,561,297,629,584/20,157,508
  6. Step 6: Final answer
    x = 47,751,998.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.