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Finding the Third Proportional to 3,890,025 and 8,379,288

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Solution

The third proportional to 3,890,025 and 8,379,288 is: 18,049,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,025 : 8,379,288 = 8,379,288 : x
  2. Step 2: Convert to fraction form
    3,890,025/8,379,288 = 8,379,288/x
  3. Step 3: Cross multiply
    3,890,025x = 8,379,288 × 8,379,288
  4. Step 4: Simplify right side
    3,890,025x = 70,212,467,386,944
  5. Step 5: Solve for x
    x = 70,212,467,386,944/3,890,025
  6. Step 6: Final answer
    x = 18,049,361.48

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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.