Home / 512,520,670,449.70-768,242,850,378.70-172,441,782,123.23

Finding the Fourth Proportional to 512,520,670,449.70, 768,242,850,378.70 and 172,441,782,123.23

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Solution

The fourth proportional to 512,520,670,449.70, 768,242,850,378.70 and 172,441,782,123.23 is: 258,481,606,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,520,670,449.70 : 768,242,850,378.70 = 172,441,782,123.23 : x
  2. Step 2: Convert to fraction form
    512,520,670,449.70/768,242,850,378.70 = 172,441,782,123.23/x
  3. Step 3: Cross multiply
    512,520,670,449.70x = 768,242,850,378.70 × 172,441,782,123.23
  4. Step 4: Simplify right side
    512,520,670,449.70x = 132,477,166,222,732,968,329,216
  5. Step 5: Solve for x
    x = 132,477,166,222,732,968,329,216/512,520,670,449.70
  6. Step 6: Final answer
    x = 258,481,606,422.81

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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.