Home / 221,383,691.20-331,179,741.60-194,509,835.20

Finding the Fourth Proportional to 221,383,691.20, 331,179,741.60 and 194,509,835.20

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Solution

The fourth proportional to 221,383,691.20, 331,179,741.60 and 194,509,835.20 is: 290,977,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,383,691.20 : 331,179,741.60 = 194,509,835.20 : x
  2. Step 2: Convert to fraction form
    221,383,691.20/331,179,741.60 = 194,509,835.20/x
  3. Step 3: Cross multiply
    221,383,691.20x = 331,179,741.60 × 194,509,835.20
  4. Step 4: Simplify right side
    221,383,691.20x = 64,417,716,960,194,584
  5. Step 5: Solve for x
    x = 64,417,716,960,194,584/221,383,691.20
  6. Step 6: Final answer
    x = 290,977,698.54

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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.