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Finding the Third Proportional to 18,509,529 and 39,860,538

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Solution

The third proportional to 18,509,529 and 39,860,538 is: 85,840,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509,529 : 39,860,538 = 39,860,538 : x
  2. Step 2: Convert to fraction form
    18,509,529/39,860,538 = 39,860,538/x
  3. Step 3: Cross multiply
    18,509,529x = 39,860,538 × 39,860,538
  4. Step 4: Simplify right side
    18,509,529x = 1,588,862,489,649,444
  5. Step 5: Solve for x
    x = 1,588,862,489,649,444/18,509,529
  6. Step 6: Final answer
    x = 85,840,244.21

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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.