Home / 12,665,459.39-18,998,194.55-3,080,778.80

Finding the Fourth Proportional to 12,665,459.39, 18,998,194.55 and 3,080,778.80

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Solution

The fourth proportional to 12,665,459.39, 18,998,194.55 and 3,080,778.80 is: 4,621,169.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665,459.39 : 18,998,194.55 = 3,080,778.80 : x
  2. Step 2: Convert to fraction form
    12,665,459.39/18,998,194.55 = 3,080,778.80/x
  3. Step 3: Cross multiply
    12,665,459.39x = 18,998,194.55 × 3,080,778.80
  4. Step 4: Simplify right side
    12,665,459.39x = 58,529,234,897,520.68
  5. Step 5: Solve for x
    x = 58,529,234,897,520.68/12,665,459.39
  6. Step 6: Final answer
    x = 4,621,169.52

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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.