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Finding the Third Proportional to 18,156,960 and 39,069,216

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Solution

The third proportional to 18,156,960 and 39,069,216 is: 84,067,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156,960 : 39,069,216 = 39,069,216 : x
  2. Step 2: Convert to fraction form
    18,156,960/39,069,216 = 39,069,216/x
  3. Step 3: Cross multiply
    18,156,960x = 39,069,216 × 39,069,216
  4. Step 4: Simplify right side
    18,156,960x = 1,526,403,638,854,656
  5. Step 5: Solve for x
    x = 1,526,403,638,854,656/18,156,960
  6. Step 6: Final answer
    x = 84,067,136.73

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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.