Home / 398,099,358.80-597,149,038.20-330,074,910.80

Finding the Fourth Proportional to 398,099,358.80, 597,149,038.20 and 330,074,910.80

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Solution

The fourth proportional to 398,099,358.80, 597,149,038.20 and 330,074,910.80 is: 495,112,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,358.80 : 597,149,038.20 = 330,074,910.80 : x
  2. Step 2: Convert to fraction form
    398,099,358.80/597,149,038.20 = 330,074,910.80/x
  3. Step 3: Cross multiply
    398,099,358.80x = 597,149,038.20 × 330,074,910.80
  4. Step 4: Simplify right side
    398,099,358.80x = 197,103,915,518,170,816
  5. Step 5: Solve for x
    x = 197,103,915,518,170,816/398,099,358.80
  6. Step 6: Final answer
    x = 495,112,366.20

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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.