Home / 6,705,309,972.75-9,250,420,214.75-3,991,055,835.21

Finding the Fourth Proportional to 6,705,309,972.75, 9,250,420,214.75 and 3,991,055,835.21

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Solution

The fourth proportional to 6,705,309,972.75, 9,250,420,214.75 and 3,991,055,835.21 is: 5,505,926,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,705,309,972.75 : 9,250,420,214.75 = 3,991,055,835.21 : x
  2. Step 2: Convert to fraction form
    6,705,309,972.75/9,250,420,214.75 = 3,991,055,835.21/x
  3. Step 3: Cross multiply
    6,705,309,972.75x = 9,250,420,214.75 × 3,991,055,835.21
  4. Step 4: Simplify right side
    6,705,309,972.75x = 36,918,943,576,202,575,872
  5. Step 5: Solve for x
    x = 36,918,943,576,202,575,872/6,705,309,972.75
  6. Step 6: Final answer
    x = 5,505,926,456.23

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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.