Home / 12,290,424.80-18,435,637.20-8,464,049.60

Finding the Fourth Proportional to 12,290,424.80, 18,435,637.20 and 8,464,049.60

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Solution

The fourth proportional to 12,290,424.80, 18,435,637.20 and 8,464,049.60 is: 12,696,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,424.80 : 18,435,637.20 = 8,464,049.60 : x
  2. Step 2: Convert to fraction form
    12,290,424.80/18,435,637.20 = 8,464,049.60/x
  3. Step 3: Cross multiply
    12,290,424.80x = 18,435,637.20 × 8,464,049.60
  4. Step 4: Simplify right side
    12,290,424.80x = 156,040,147,668,405.09
  5. Step 5: Solve for x
    x = 156,040,147,668,405.09/12,290,424.80
  6. Step 6: Final answer
    x = 12,696,074.40

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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.