Home / 18,933,147.45-28,381,742.82-6,144,708.69

Finding the Fourth Proportional to 18,933,147.45, 28,381,742.82 and 6,144,708.69

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Solution

The fourth proportional to 18,933,147.45, 28,381,742.82 and 6,144,708.69 is: 9,211,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933,147.45 : 28,381,742.82 = 6,144,708.69 : x
  2. Step 2: Convert to fraction form
    18,933,147.45/28,381,742.82 = 6,144,708.69/x
  3. Step 3: Cross multiply
    18,933,147.45x = 28,381,742.82 × 6,144,708.69
  4. Step 4: Simplify right side
    18,933,147.45x = 174,397,541,743,399.12
  5. Step 5: Solve for x
    x = 174,397,541,743,399.12/18,933,147.45
  6. Step 6: Final answer
    x = 9,211,228.20

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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.