Home / 12,229,780.80-18,340,005.60-3,707,284.80

Finding the Fourth Proportional to 12,229,780.80, 18,340,005.60 and 3,707,284.80

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Solution

The fourth proportional to 12,229,780.80, 18,340,005.60 and 3,707,284.80 is: 5,559,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229,780.80 : 18,340,005.60 = 3,707,284.80 : x
  2. Step 2: Convert to fraction form
    12,229,780.80/18,340,005.60 = 3,707,284.80/x
  3. Step 3: Cross multiply
    12,229,780.80x = 18,340,005.60 × 3,707,284.80
  4. Step 4: Simplify right side
    12,229,780.80x = 67,991,623,992,794.88
  5. Step 5: Solve for x
    x = 67,991,623,992,794.88/12,229,780.80
  6. Step 6: Final answer
    x = 5,559,512.89

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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.