Home / 320,476,263.04-480,647,125.20-90,391,540.24

Finding the Fourth Proportional to 320,476,263.04, 480,647,125.20 and 90,391,540.24

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Solution

The fourth proportional to 320,476,263.04, 480,647,125.20 and 90,391,540.24 is: 135,568,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,476,263.04 : 480,647,125.20 = 90,391,540.24 : x
  2. Step 2: Convert to fraction form
    320,476,263.04/480,647,125.20 = 90,391,540.24/x
  3. Step 3: Cross multiply
    320,476,263.04x = 480,647,125.20 × 90,391,540.24
  4. Step 4: Simplify right side
    320,476,263.04x = 43,446,433,958,756,112
  5. Step 5: Solve for x
    x = 43,446,433,958,756,112/320,476,263.04
  6. Step 6: Final answer
    x = 135,568,336.78

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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.