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Finding the Third Proportional to 8,388,200 and 18,147,406

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Solution

The third proportional to 8,388,200 and 18,147,406 is: 39,260,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388,200 : 18,147,406 = 18,147,406 : x
  2. Step 2: Convert to fraction form
    8,388,200/18,147,406 = 18,147,406/x
  3. Step 3: Cross multiply
    8,388,200x = 18,147,406 × 18,147,406
  4. Step 4: Simplify right side
    8,388,200x = 329,328,344,528,836
  5. Step 5: Solve for x
    x = 329,328,344,528,836/8,388,200
  6. Step 6: Final answer
    x = 39,260,907.53

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.