Home / 20,620,400.40-30,930,600.60-10,542,704.40

Finding the Fourth Proportional to 20,620,400.40, 30,930,600.60 and 10,542,704.40

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Solution

The fourth proportional to 20,620,400.40, 30,930,600.60 and 10,542,704.40 is: 15,814,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620,400.40 : 30,930,600.60 = 10,542,704.40 : x
  2. Step 2: Convert to fraction form
    20,620,400.40/30,930,600.60 = 10,542,704.40/x
  3. Step 3: Cross multiply
    20,620,400.40x = 30,930,600.60 × 10,542,704.40
  4. Step 4: Simplify right side
    20,620,400.40x = 326,092,179,040,262.69
  5. Step 5: Solve for x
    x = 326,092,179,040,262.69/20,620,400.40
  6. Step 6: Final answer
    x = 15,814,056.60

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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.