Home / 8,263,814,857.20-12,395,722,285.80-7,942,399,340.40

Finding the Fourth Proportional to 8,263,814,857.20, 12,395,722,285.80 and 7,942,399,340.40

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Solution

The fourth proportional to 8,263,814,857.20, 12,395,722,285.80 and 7,942,399,340.40 is: 11,913,599,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263,814,857.20 : 12,395,722,285.80 = 7,942,399,340.40 : x
  2. Step 2: Convert to fraction form
    8,263,814,857.20/12,395,722,285.80 = 7,942,399,340.40/x
  3. Step 3: Cross multiply
    8,263,814,857.20x = 12,395,722,285.80 × 7,942,399,340.40
  4. Step 4: Simplify right side
    8,263,814,857.20x = 98,451,776,506,519,486,464
  5. Step 5: Solve for x
    x = 98,451,776,506,519,486,464/8,263,814,857.20
  6. Step 6: Final answer
    x = 11,913,599,010.60

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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.