Home / 90,468,062,704.80-135,702,094,057.20-81,789,843,751.20

Finding the Fourth Proportional to 90,468,062,704.80, 135,702,094,057.20 and 81,789,843,751.20

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Solution

The fourth proportional to 90,468,062,704.80, 135,702,094,057.20 and 81,789,843,751.20 is: 122,684,765,626.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,468,062,704.80 : 135,702,094,057.20 = 81,789,843,751.20 : x
  2. Step 2: Convert to fraction form
    90,468,062,704.80/135,702,094,057.20 = 81,789,843,751.20/x
  3. Step 3: Cross multiply
    90,468,062,704.80x = 135,702,094,057.20 × 81,789,843,751.20
  4. Step 4: Simplify right side
    90,468,062,704.80x = 11,099,053,069,649,032,773,632
  5. Step 5: Solve for x
    x = 11,099,053,069,649,032,773,632/90,468,062,704.80
  6. Step 6: Final answer
    x = 122,684,765,626.80

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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.