Home / 279,936,563.20-419,904,844.80-98,160,121.60

Finding the Fourth Proportional to 279,936,563.20, 419,904,844.80 and 98,160,121.60

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Solution

The fourth proportional to 279,936,563.20, 419,904,844.80 and 98,160,121.60 is: 147,240,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,563.20 : 419,904,844.80 = 98,160,121.60 : x
  2. Step 2: Convert to fraction form
    279,936,563.20/419,904,844.80 = 98,160,121.60/x
  3. Step 3: Cross multiply
    279,936,563.20x = 419,904,844.80 × 98,160,121.60
  4. Step 4: Simplify right side
    279,936,563.20x = 41,217,910,625,997,128
  5. Step 5: Solve for x
    x = 41,217,910,625,997,128/279,936,563.20
  6. Step 6: Final answer
    x = 147,240,182.40

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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.