Home / 5,115,717,517.12-7,058,938,761.12-2,857,378,834.24

Finding the Fourth Proportional to 5,115,717,517.12, 7,058,938,761.12 and 2,857,378,834.24

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Solution

The fourth proportional to 5,115,717,517.12, 7,058,938,761.12 and 2,857,378,834.24 is: 3,942,763,090.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115,717,517.12 : 7,058,938,761.12 = 2,857,378,834.24 : x
  2. Step 2: Convert to fraction form
    5,115,717,517.12/7,058,938,761.12 = 2,857,378,834.24/x
  3. Step 3: Cross multiply
    5,115,717,517.12x = 7,058,938,761.12 × 2,857,378,834.24
  4. Step 4: Simplify right side
    5,115,717,517.12x = 20,170,062,208,220,614,656
  5. Step 5: Solve for x
    x = 20,170,062,208,220,614,656/5,115,717,517.12
  6. Step 6: Final answer
    x = 3,942,763,090.56

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.