Home / 18,112,675.21-27,181,609.93-11,707,039.69

Finding the Fourth Proportional to 18,112,675.21, 27,181,609.93 and 11,707,039.69

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Solution

The fourth proportional to 18,112,675.21, 27,181,609.93 and 11,707,039.69 is: 17,568,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112,675.21 : 27,181,609.93 = 11,707,039.69 : x
  2. Step 2: Convert to fraction form
    18,112,675.21/27,181,609.93 = 11,707,039.69/x
  3. Step 3: Cross multiply
    18,112,675.21x = 27,181,609.93 × 11,707,039.69
  4. Step 4: Simplify right side
    18,112,675.21x = 318,216,186,235,287.88
  5. Step 5: Solve for x
    x = 318,216,186,235,287.88/18,112,675.21
  6. Step 6: Final answer
    x = 17,568,701.62

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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.