Home / 80,440,331.60-120,660,497.40-19,856,057.60

Finding the Fourth Proportional to 80,440,331.60, 120,660,497.40 and 19,856,057.60

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Solution

The fourth proportional to 80,440,331.60, 120,660,497.40 and 19,856,057.60 is: 29,784,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,440,331.60 : 120,660,497.40 = 19,856,057.60 : x
  2. Step 2: Convert to fraction form
    80,440,331.60/120,660,497.40 = 19,856,057.60/x
  3. Step 3: Cross multiply
    80,440,331.60x = 120,660,497.40 × 19,856,057.60
  4. Step 4: Simplify right side
    80,440,331.60x = 2,395,841,786,419,050.50
  5. Step 5: Solve for x
    x = 2,395,841,786,419,050.50/80,440,331.60
  6. Step 6: Final answer
    x = 29,784,086.40

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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.