Home / 398,099,280.80-597,148,921.20-330,074,832.80

Finding the Fourth Proportional to 398,099,280.80, 597,148,921.20 and 330,074,832.80

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Solution

The fourth proportional to 398,099,280.80, 597,148,921.20 and 330,074,832.80 is: 495,112,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,280.80 : 597,148,921.20 = 330,074,832.80 : x
  2. Step 2: Convert to fraction form
    398,099,280.80/597,148,921.20 = 330,074,832.80/x
  3. Step 3: Cross multiply
    398,099,280.80x = 597,148,921.20 × 330,074,832.80
  4. Step 4: Simplify right side
    398,099,280.80x = 197,103,830,321,790,400
  5. Step 5: Solve for x
    x = 197,103,830,321,790,400/398,099,280.80
  6. Step 6: Final answer
    x = 495,112,249.20

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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.