Home / 8,118,662,406.60-12,177,993,609.90-3,986,177,190.60

Finding the Fourth Proportional to 8,118,662,406.60, 12,177,993,609.90 and 3,986,177,190.60

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Solution

The fourth proportional to 8,118,662,406.60, 12,177,993,609.90 and 3,986,177,190.60 is: 5,979,265,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118,662,406.60 : 12,177,993,609.90 = 3,986,177,190.60 : x
  2. Step 2: Convert to fraction form
    8,118,662,406.60/12,177,993,609.90 = 3,986,177,190.60/x
  3. Step 3: Cross multiply
    8,118,662,406.60x = 12,177,993,609.90 × 3,986,177,190.60
  4. Step 4: Simplify right side
    8,118,662,406.60x = 48,543,640,355,055,935,488
  5. Step 5: Solve for x
    x = 48,543,640,355,055,935,488/8,118,662,406.60
  6. Step 6: Final answer
    x = 5,979,265,785.90

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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.