Home / 18,904,136.70-28,356,205.05-9,324,104.70

Finding the Fourth Proportional to 18,904,136.70, 28,356,205.05 and 9,324,104.70

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Solution

The fourth proportional to 18,904,136.70, 28,356,205.05 and 9,324,104.70 is: 13,986,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904,136.70 : 28,356,205.05 = 9,324,104.70 : x
  2. Step 2: Convert to fraction form
    18,904,136.70/28,356,205.05 = 9,324,104.70/x
  3. Step 3: Cross multiply
    18,904,136.70x = 28,356,205.05 × 9,324,104.70
  4. Step 4: Simplify right side
    18,904,136.70x = 264,396,224,780,868.72
  5. Step 5: Solve for x
    x = 264,396,224,780,868.72/18,904,136.70
  6. Step 6: Final answer
    x = 13,986,157.05

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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.