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Finding the Third Proportional to 1,281,318,912 and 2,797,504,128

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Solution

The third proportional to 1,281,318,912 and 2,797,504,128 is: 6,107,791,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,318,912 : 2,797,504,128 = 2,797,504,128 : x
  2. Step 2: Convert to fraction form
    1,281,318,912/2,797,504,128 = 2,797,504,128/x
  3. Step 3: Cross multiply
    1,281,318,912x = 2,797,504,128 × 2,797,504,128
  4. Step 4: Simplify right side
    1,281,318,912x = 7,826,029,346,177,040,384
  5. Step 5: Solve for x
    x = 7,826,029,346,177,040,384/1,281,318,912
  6. Step 6: Final answer
    x = 6,107,791,957.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.