Home / 18,738,137.10-28,107,205.65-11,557,778.70

Finding the Fourth Proportional to 18,738,137.10, 28,107,205.65 and 11,557,778.70

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Solution

The fourth proportional to 18,738,137.10, 28,107,205.65 and 11,557,778.70 is: 17,336,668.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738,137.10 : 28,107,205.65 = 11,557,778.70 : x
  2. Step 2: Convert to fraction form
    18,738,137.10/28,107,205.65 = 11,557,778.70/x
  3. Step 3: Cross multiply
    18,738,137.10x = 28,107,205.65 × 11,557,778.70
  4. Step 4: Simplify right side
    18,738,137.10x = 324,856,862,778,089.62
  5. Step 5: Solve for x
    x = 324,856,862,778,089.62/18,738,137.10
  6. Step 6: Final answer
    x = 17,336,668.05

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1.5x scale

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.