Home / 398,099,216.80-597,148,825.20-330,074,768.80

Finding the Fourth Proportional to 398,099,216.80, 597,148,825.20 and 330,074,768.80

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Solution

The fourth proportional to 398,099,216.80, 597,148,825.20 and 330,074,768.80 is: 495,112,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,099,216.80 : 597,148,825.20 = 330,074,768.80 : x
  2. Step 2: Convert to fraction form
    398,099,216.80/597,148,825.20 = 330,074,768.80/x
  3. Step 3: Cross multiply
    398,099,216.80x = 597,148,825.20 × 330,074,768.80
  4. Step 4: Simplify right side
    398,099,216.80x = 197,103,760,417,081,632
  5. Step 5: Solve for x
    x = 197,103,760,417,081,632/398,099,216.80
  6. Step 6: Final answer
    x = 495,112,153.20

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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.