Home / 388,100,793.90-582,151,190.85-319,226,040.30

Finding the Fourth Proportional to 388,100,793.90, 582,151,190.85 and 319,226,040.30

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Solution

The fourth proportional to 388,100,793.90, 582,151,190.85 and 319,226,040.30 is: 478,839,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,100,793.90 : 582,151,190.85 = 319,226,040.30 : x
  2. Step 2: Convert to fraction form
    388,100,793.90/582,151,190.85 = 319,226,040.30/x
  3. Step 3: Cross multiply
    388,100,793.90x = 582,151,190.85 × 319,226,040.30
  4. Step 4: Simplify right side
    388,100,793.90x = 185,837,819,510,975,104
  5. Step 5: Solve for x
    x = 185,837,819,510,975,104/388,100,793.90
  6. Step 6: Final answer
    x = 478,839,060.45

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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.