Home / 8,309,389.20-12,465,055.80-2,630,187.60

Finding the Fourth Proportional to 8,309,389.20, 12,465,055.80 and 2,630,187.60

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Solution

The fourth proportional to 8,309,389.20, 12,465,055.80 and 2,630,187.60 is: 3,945,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,389.20 : 12,465,055.80 = 2,630,187.60 : x
  2. Step 2: Convert to fraction form
    8,309,389.20/12,465,055.80 = 2,630,187.60/x
  3. Step 3: Cross multiply
    8,309,389.20x = 12,465,055.80 × 2,630,187.60
  4. Step 4: Simplify right side
    8,309,389.20x = 32,785,435,198,468.08
  5. Step 5: Solve for x
    x = 32,785,435,198,468.08/8,309,389.20
  6. Step 6: Final answer
    x = 3,945,589.07

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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.