Home / 512,520,670,510.35-768,242,850,469.70-172,441,782,183.88

Finding the Fourth Proportional to 512,520,670,510.35, 768,242,850,469.70 and 172,441,782,183.88

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Solution

The fourth proportional to 512,520,670,510.35, 768,242,850,469.70 and 172,441,782,183.88 is: 258,481,606,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,520,670,510.35 : 768,242,850,469.70 = 172,441,782,183.88 : x
  2. Step 2: Convert to fraction form
    512,520,670,510.35/768,242,850,469.70 = 172,441,782,183.88/x
  3. Step 3: Cross multiply
    512,520,670,510.35x = 768,242,850,469.70 × 172,441,782,183.88
  4. Step 4: Simplify right side
    512,520,670,510.35x = 132,477,166,285,019,087,372,288
  5. Step 5: Solve for x
    x = 132,477,166,285,019,087,372,288/512,520,670,510.35
  6. Step 6: Final answer
    x = 258,481,606,513.75

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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.