Home / 3,969,559,855.20-5,954,339,782.80-1,639,722,511.20

Finding the Fourth Proportional to 3,969,559,855.20, 5,954,339,782.80 and 1,639,722,511.20

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Solution

The fourth proportional to 3,969,559,855.20, 5,954,339,782.80 and 1,639,722,511.20 is: 2,459,583,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,559,855.20 : 5,954,339,782.80 = 1,639,722,511.20 : x
  2. Step 2: Convert to fraction form
    3,969,559,855.20/5,954,339,782.80 = 1,639,722,511.20/x
  3. Step 3: Cross multiply
    3,969,559,855.20x = 5,954,339,782.80 × 1,639,722,511.20
  4. Step 4: Simplify right side
    3,969,559,855.20x = 9,763,464,981,190,879,232
  5. Step 5: Solve for x
    x = 9,763,464,981,190,879,232/3,969,559,855.20
  6. Step 6: Final answer
    x = 2,459,583,766.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.