Home / 3,120,162.40-4,677,910.80-1,321,573.60

Finding the Fourth Proportional to 3,120,162.40, 4,677,910.80 and 1,321,573.60

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Solution

The fourth proportional to 3,120,162.40, 4,677,910.80 and 1,321,573.60 is: 1,981,372.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,162.40 : 4,677,910.80 = 1,321,573.60 : x
  2. Step 2: Convert to fraction form
    3,120,162.40/4,677,910.80 = 1,321,573.60/x
  3. Step 3: Cross multiply
    3,120,162.40x = 4,677,910.80 × 1,321,573.60
  4. Step 4: Simplify right side
    3,120,162.40x = 6,182,203,416,434.88
  5. Step 5: Solve for x
    x = 6,182,203,416,434.88/3,120,162.40
  6. Step 6: Final answer
    x = 1,981,372.32

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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.