Home / 18,954,015.20-28,431,022.80-18,576,101.60

Finding the Fourth Proportional to 18,954,015.20, 28,431,022.80 and 18,576,101.60

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Solution

The fourth proportional to 18,954,015.20, 28,431,022.80 and 18,576,101.60 is: 27,864,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954,015.20 : 28,431,022.80 = 18,576,101.60 : x
  2. Step 2: Convert to fraction form
    18,954,015.20/28,431,022.80 = 18,576,101.60/x
  3. Step 3: Cross multiply
    18,954,015.20x = 28,431,022.80 × 18,576,101.60
  4. Step 4: Simplify right side
    18,954,015.20x = 528,137,568,124,716.56
  5. Step 5: Solve for x
    x = 528,137,568,124,716.56/18,954,015.20
  6. Step 6: Final answer
    x = 27,864,152.40

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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.