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Finding the Third Proportional to 18,121,004 and 39,822,856

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Solution

The third proportional to 18,121,004 and 39,822,856 is: 87,515,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121,004 : 39,822,856 = 39,822,856 : x
  2. Step 2: Convert to fraction form
    18,121,004/39,822,856 = 39,822,856/x
  3. Step 3: Cross multiply
    18,121,004x = 39,822,856 × 39,822,856
  4. Step 4: Simplify right side
    18,121,004x = 1,585,859,859,996,736
  5. Step 5: Solve for x
    x = 1,585,859,859,996,736/18,121,004
  6. Step 6: Final answer
    x = 87,515,010.76

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.