Home / 398,103,500.80-597,155,251.20-330,079,052.80

Finding the Fourth Proportional to 398,103,500.80, 597,155,251.20 and 330,079,052.80

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Solution

The fourth proportional to 398,103,500.80, 597,155,251.20 and 330,079,052.80 is: 495,118,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,103,500.80 : 597,155,251.20 = 330,079,052.80 : x
  2. Step 2: Convert to fraction form
    398,103,500.80/597,155,251.20 = 330,079,052.80/x
  3. Step 3: Cross multiply
    398,103,500.80x = 597,155,251.20 × 330,079,052.80
  4. Step 4: Simplify right side
    398,103,500.80x = 197,108,439,690,642,080
  5. Step 5: Solve for x
    x = 197,108,439,690,642,080/398,103,500.80
  6. Step 6: Final answer
    x = 495,118,579.20

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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.