Home / 20,431,870.24-30,647,805.04-19,410,191.20

Finding the Fourth Proportional to 20,431,870.24, 30,647,805.04 and 19,410,191.20

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Solution

The fourth proportional to 20,431,870.24, 30,647,805.04 and 19,410,191.20 is: 29,115,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,870.24 : 30,647,805.04 = 19,410,191.20 : x
  2. Step 2: Convert to fraction form
    20,431,870.24/30,647,805.04 = 19,410,191.20/x
  3. Step 3: Cross multiply
    20,431,870.24x = 30,647,805.04 × 19,410,191.20
  4. Step 4: Simplify right side
    20,431,870.24x = 594,879,755,686,723.62
  5. Step 5: Solve for x
    x = 594,879,755,686,723.62/20,431,870.24
  6. Step 6: Final answer
    x = 29,115,286.50

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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.