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Finding the Third Proportional to 18,512,025 and 39,868,835

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Solution

The third proportional to 18,512,025 and 39,868,835 is: 85,864,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512,025 : 39,868,835 = 39,868,835 : x
  2. Step 2: Convert to fraction form
    18,512,025/39,868,835 = 39,868,835/x
  3. Step 3: Cross multiply
    18,512,025x = 39,868,835 × 39,868,835
  4. Step 4: Simplify right side
    18,512,025x = 1,589,524,004,257,225
  5. Step 5: Solve for x
    x = 1,589,524,004,257,225/18,512,025
  6. Step 6: Final answer
    x = 85,864,404.58

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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.