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Finding the Fourth Proportional to 2,751,993,721.80, 3,863,675,122.20 and 2,751,993,721.80

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Solution

The fourth proportional to 2,751,993,721.80, 3,863,675,122.20 and 2,751,993,721.80 is: 3,863,675,122.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751,993,721.80 : 3,863,675,122.20 = 2,751,993,721.80 : x
  2. Step 2: Convert to fraction form
    2,751,993,721.80/3,863,675,122.20 = 2,751,993,721.80/x
  3. Step 3: Cross multiply
    2,751,993,721.80x = 3,863,675,122.20 × 2,751,993,721.80
  4. Step 4: Simplify right side
    2,751,993,721.80x = 10,632,809,679,369,248,768
  5. Step 5: Solve for x
    x = 10,632,809,679,369,248,768/2,751,993,721.80
  6. Step 6: Final answer
    x = 3,863,675,122.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.