Home / 12,328,609.96-18,493,039.78-5,505,530.81

Finding the Fourth Proportional to 12,328,609.96, 18,493,039.78 and 5,505,530.81

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Solution

The fourth proportional to 12,328,609.96, 18,493,039.78 and 5,505,530.81 is: 8,258,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328,609.96 : 18,493,039.78 = 5,505,530.81 : x
  2. Step 2: Convert to fraction form
    12,328,609.96/18,493,039.78 = 5,505,530.81/x
  3. Step 3: Cross multiply
    12,328,609.96x = 18,493,039.78 × 5,505,530.81
  4. Step 4: Simplify right side
    12,328,609.96x = 101,814,000,251,817.95
  5. Step 5: Solve for x
    x = 101,814,000,251,817.95/12,328,609.96
  6. Step 6: Final answer
    x = 8,258,351.97

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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.