Home / 398,104,110.80-597,156,166.20-330,079,662.80

Finding the Fourth Proportional to 398,104,110.80, 597,156,166.20 and 330,079,662.80

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Solution

The fourth proportional to 398,104,110.80, 597,156,166.20 and 330,079,662.80 is: 495,119,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,104,110.80 : 597,156,166.20 = 330,079,662.80 : x
  2. Step 2: Convert to fraction form
    398,104,110.80/597,156,166.20 = 330,079,662.80/x
  3. Step 3: Cross multiply
    398,104,110.80x = 597,156,166.20 × 330,079,662.80
  4. Step 4: Simplify right side
    398,104,110.80x = 197,109,105,978,236,768
  5. Step 5: Solve for x
    x = 197,109,105,978,236,768/398,104,110.80
  6. Step 6: Final answer
    x = 495,119,494.20

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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.