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Finding the Third Proportional to 20,190,128 and 31,322,245

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Solution

The third proportional to 20,190,128 and 31,322,245 is: 48,592,214.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,128 : 31,322,245 = 31,322,245 : x
  2. Step 2: Convert to fraction form
    20,190,128/31,322,245 = 31,322,245/x
  3. Step 3: Cross multiply
    20,190,128x = 31,322,245 × 31,322,245
  4. Step 4: Simplify right side
    20,190,128x = 981,083,031,840,025
  5. Step 5: Solve for x
    x = 981,083,031,840,025/20,190,128
  6. Step 6: Final answer
    x = 48,592,214.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.