Home / 311,518,929.92-430,028,491.97-194,102,272.35

Finding the Fourth Proportional to 311,518,929.92, 430,028,491.97 and 194,102,272.35

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Solution

The fourth proportional to 311,518,929.92, 430,028,491.97 and 194,102,272.35 is: 267,943,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,518,929.92 : 430,028,491.97 = 194,102,272.35 : x
  2. Step 2: Convert to fraction form
    311,518,929.92/430,028,491.97 = 194,102,272.35/x
  3. Step 3: Cross multiply
    311,518,929.92x = 430,028,491.97 × 194,102,272.35
  4. Step 4: Simplify right side
    311,518,929.92x = 83,469,507,467,105,984
  5. Step 5: Solve for x
    x = 83,469,507,467,105,984/311,518,929.92
  6. Step 6: Final answer
    x = 267,943,612.58

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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.