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Finding the Third Proportional to 3,855,378 and 8,467,485

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Solution

The third proportional to 3,855,378 and 8,467,485 is: 18,596,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,378 : 8,467,485 = 8,467,485 : x
  2. Step 2: Convert to fraction form
    3,855,378/8,467,485 = 8,467,485/x
  3. Step 3: Cross multiply
    3,855,378x = 8,467,485 × 8,467,485
  4. Step 4: Simplify right side
    3,855,378x = 71,698,302,225,225
  5. Step 5: Solve for x
    x = 71,698,302,225,225/3,855,378
  6. Step 6: Final answer
    x = 18,596,957.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.