Home / 311,519,197.76-430,028,860.48-194,102,540.16

Finding the Fourth Proportional to 311,519,197.76, 430,028,860.48 and 194,102,540.16

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Solution

The fourth proportional to 311,519,197.76, 430,028,860.48 and 194,102,540.16 is: 267,943,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,519,197.76 : 430,028,860.48 = 194,102,540.16 : x
  2. Step 2: Convert to fraction form
    311,519,197.76/430,028,860.48 = 194,102,540.16/x
  3. Step 3: Cross multiply
    311,519,197.76x = 430,028,860.48 × 194,102,540.16
  4. Step 4: Simplify right side
    311,519,197.76x = 83,469,694,161,278,240
  5. Step 5: Solve for x
    x = 83,469,694,161,278,240/311,519,197.76
  6. Step 6: Final answer
    x = 267,943,981.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.