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Finding the Third Proportional to 18,981,913 and 40,654,208

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Solution

The third proportional to 18,981,913 and 40,654,208 is: 87,070,498.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,913 : 40,654,208 = 40,654,208 : x
  2. Step 2: Convert to fraction form
    18,981,913/40,654,208 = 40,654,208/x
  3. Step 3: Cross multiply
    18,981,913x = 40,654,208 × 40,654,208
  4. Step 4: Simplify right side
    18,981,913x = 1,652,764,628,107,264
  5. Step 5: Solve for x
    x = 1,652,764,628,107,264/18,981,913
  6. Step 6: Final answer
    x = 87,070,498.54

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.