Home / 319,571,002.20-479,508,135.30-221,353,736.52

Finding the Fourth Proportional to 319,571,002.20, 479,508,135.30 and 221,353,736.52

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Solution

The fourth proportional to 319,571,002.20, 479,508,135.30 and 221,353,736.52 is: 332,135,634.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,571,002.20 : 479,508,135.30 = 221,353,736.52 : x
  2. Step 2: Convert to fraction form
    319,571,002.20/479,508,135.30 = 221,353,736.52/x
  3. Step 3: Cross multiply
    319,571,002.20x = 479,508,135.30 × 221,353,736.52
  4. Step 4: Simplify right side
    319,571,002.20x = 106,140,917,440,392,720
  5. Step 5: Solve for x
    x = 106,140,917,440,392,720/319,571,002.20
  6. Step 6: Final answer
    x = 332,135,634.05

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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.