Home / 398,099,286.80-597,148,930.20-330,074,838.80

Finding the Fourth Proportional to 398,099,286.80, 597,148,930.20 and 330,074,838.80

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Solution

The fourth proportional to 398,099,286.80, 597,148,930.20 and 330,074,838.80 is: 495,112,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,286.80 : 597,148,930.20 = 330,074,838.80 : x
  2. Step 2: Convert to fraction form
    398,099,286.80/597,148,930.20 = 330,074,838.80/x
  3. Step 3: Cross multiply
    398,099,286.80x = 597,148,930.20 × 330,074,838.80
  4. Step 4: Simplify right side
    398,099,286.80x = 197,103,836,875,357,472
  5. Step 5: Solve for x
    x = 197,103,836,875,357,472/398,099,286.80
  6. Step 6: Final answer
    x = 495,112,258.20

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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.