Home / 7,861,215,195.60-11,791,822,793.40-3,728,729,979.60

Finding the Fourth Proportional to 7,861,215,195.60, 11,791,822,793.40 and 3,728,729,979.60

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Solution

The fourth proportional to 7,861,215,195.60, 11,791,822,793.40 and 3,728,729,979.60 is: 5,593,094,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861,215,195.60 : 11,791,822,793.40 = 3,728,729,979.60 : x
  2. Step 2: Convert to fraction form
    7,861,215,195.60/11,791,822,793.40 = 3,728,729,979.60/x
  3. Step 3: Cross multiply
    7,861,215,195.60x = 11,791,822,793.40 × 3,728,729,979.60
  4. Step 4: Simplify right side
    7,861,215,195.60x = 43,968,523,163,881,193,472
  5. Step 5: Solve for x
    x = 43,968,523,163,881,193,472/7,861,215,195.60
  6. Step 6: Final answer
    x = 5,593,094,969.40

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Half scale
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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.