Home / 279,548,150.40-419,571,057.60-164,388,700.80

Finding the Fourth Proportional to 279,548,150.40, 419,571,057.60 and 164,388,700.80

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Solution

The fourth proportional to 279,548,150.40, 419,571,057.60 and 164,388,700.80 is: 246,729,377.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,548,150.40 : 419,571,057.60 = 164,388,700.80 : x
  2. Step 2: Convert to fraction form
    279,548,150.40/419,571,057.60 = 164,388,700.80/x
  3. Step 3: Cross multiply
    279,548,150.40x = 419,571,057.60 × 164,388,700.80
  4. Step 4: Simplify right side
    279,548,150.40x = 68,972,741,052,145,976
  5. Step 5: Solve for x
    x = 68,972,741,052,145,976/279,548,150.40
  6. Step 6: Final answer
    x = 246,729,377.22

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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.