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Finding the Third Proportional to 1,819,997,946 and 3,921,145,677

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Solution

The third proportional to 1,819,997,946 and 3,921,145,677 is: 8,448,022,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,997,946 : 3,921,145,677 = 3,921,145,677 : x
  2. Step 2: Convert to fraction form
    1,819,997,946/3,921,145,677 = 3,921,145,677/x
  3. Step 3: Cross multiply
    1,819,997,946x = 3,921,145,677 × 3,921,145,677
  4. Step 4: Simplify right side
    1,819,997,946x = 15,375,383,420,255,789,056
  5. Step 5: Solve for x
    x = 15,375,383,420,255,789,056/1,819,997,946
  6. Step 6: Final answer
    x = 8,448,022,402.47

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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.