Home / 12,378,637.65-18,568,776.60-3,280,608.30

Finding the Fourth Proportional to 12,378,637.65, 18,568,776.60 and 3,280,608.30

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Solution

The fourth proportional to 12,378,637.65, 18,568,776.60 and 3,280,608.30 is: 4,921,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,637.65 : 18,568,776.60 = 3,280,608.30 : x
  2. Step 2: Convert to fraction form
    12,378,637.65/18,568,776.60 = 3,280,608.30/x
  3. Step 3: Cross multiply
    12,378,637.65x = 18,568,776.60 × 3,280,608.30
  4. Step 4: Simplify right side
    12,378,637.65x = 60,916,882,634,805.78
  5. Step 5: Solve for x
    x = 60,916,882,634,805.78/12,378,637.65
  6. Step 6: Final answer
    x = 4,921,129.80

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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.