Home / 288,086,965.20-432,129,807.36-222,603,321.60

Finding the Fourth Proportional to 288,086,965.20, 432,129,807.36 and 222,603,321.60

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Solution

The fourth proportional to 288,086,965.20, 432,129,807.36 and 222,603,321.60 is: 333,904,487.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,086,965.20 : 432,129,807.36 = 222,603,321.60 : x
  2. Step 2: Convert to fraction form
    288,086,965.20/432,129,807.36 = 222,603,321.60/x
  3. Step 3: Cross multiply
    288,086,965.20x = 432,129,807.36 × 222,603,321.60
  4. Step 4: Simplify right side
    288,086,965.20x = 96,193,530,480,704,128
  5. Step 5: Solve for x
    x = 96,193,530,480,704,128/288,086,965.20
  6. Step 6: Final answer
    x = 333,904,487.54

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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.