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Finding the Third Proportional to 1,819,997,919 and 3,921,145,668

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Solution

The third proportional to 1,819,997,919 and 3,921,145,668 is: 8,448,022,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,997,919 : 3,921,145,668 = 3,921,145,668 : x
  2. Step 2: Convert to fraction form
    1,819,997,919/3,921,145,668 = 3,921,145,668/x
  3. Step 3: Cross multiply
    1,819,997,919x = 3,921,145,668 × 3,921,145,668
  4. Step 4: Simplify right side
    1,819,997,919x = 15,375,383,349,675,165,696
  5. Step 5: Solve for x
    x = 15,375,383,349,675,165,696/1,819,997,919
  6. Step 6: Final answer
    x = 8,448,022,489.02

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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.