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Finding the Third Proportional to 18,231,801 and 39,490,413

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Solution

The third proportional to 18,231,801 and 39,490,413 is: 85,536,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,801 : 39,490,413 = 39,490,413 : x
  2. Step 2: Convert to fraction form
    18,231,801/39,490,413 = 39,490,413/x
  3. Step 3: Cross multiply
    18,231,801x = 39,490,413 × 39,490,413
  4. Step 4: Simplify right side
    18,231,801x = 1,559,492,718,910,569
  5. Step 5: Solve for x
    x = 1,559,492,718,910,569/18,231,801
  6. Step 6: Final answer
    x = 85,536,953.75

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.