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Finding the Third Proportional to 18,512,026 and 39,868,838

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Solution

The third proportional to 18,512,026 and 39,868,838 is: 85,864,412.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512,026 : 39,868,838 = 39,868,838 : x
  2. Step 2: Convert to fraction form
    18,512,026/39,868,838 = 39,868,838/x
  3. Step 3: Cross multiply
    18,512,026x = 39,868,838 × 39,868,838
  4. Step 4: Simplify right side
    18,512,026x = 1,589,524,243,470,244
  5. Step 5: Solve for x
    x = 1,589,524,243,470,244/18,512,026
  6. Step 6: Final answer
    x = 85,864,412.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.