Home / 1,019,928,216.30-1,529,892,324.45-329,905,221.90

Finding the Fourth Proportional to 1,019,928,216.30, 1,529,892,324.45 and 329,905,221.90

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Solution

The fourth proportional to 1,019,928,216.30, 1,529,892,324.45 and 329,905,221.90 is: 494,857,832.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,928,216.30 : 1,529,892,324.45 = 329,905,221.90 : x
  2. Step 2: Convert to fraction form
    1,019,928,216.30/1,529,892,324.45 = 329,905,221.90/x
  3. Step 3: Cross multiply
    1,019,928,216.30x = 1,529,892,324.45 × 329,905,221.90
  4. Step 4: Simplify right side
    1,019,928,216.30x = 504,719,466,780,784,000
  5. Step 5: Solve for x
    x = 504,719,466,780,784,000/1,019,928,216.30
  6. Step 6: Final answer
    x = 494,857,832.85

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Double scale
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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.