Home / 20,397,019.20-30,595,528.80-19,200,292.80

Finding the Fourth Proportional to 20,397,019.20, 30,595,528.80 and 19,200,292.80

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Solution

The fourth proportional to 20,397,019.20, 30,595,528.80 and 19,200,292.80 is: 28,800,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397,019.20 : 30,595,528.80 = 19,200,292.80 : x
  2. Step 2: Convert to fraction form
    20,397,019.20/30,595,528.80 = 19,200,292.80/x
  3. Step 3: Cross multiply
    20,397,019.20x = 30,595,528.80 × 19,200,292.80
  4. Step 4: Simplify right side
    20,397,019.20x = 587,443,111,330,832.62
  5. Step 5: Solve for x
    x = 587,443,111,330,832.62/20,397,019.20
  6. Step 6: Final answer
    x = 28,800,439.20

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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.