Home / 20,552,469.60-30,828,704.40-12,589,845.60

Finding the Fourth Proportional to 20,552,469.60, 30,828,704.40 and 12,589,845.60

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Solution

The fourth proportional to 20,552,469.60, 30,828,704.40 and 12,589,845.60 is: 18,884,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552,469.60 : 30,828,704.40 = 12,589,845.60 : x
  2. Step 2: Convert to fraction form
    20,552,469.60/30,828,704.40 = 12,589,845.60/x
  3. Step 3: Cross multiply
    20,552,469.60x = 30,828,704.40 × 12,589,845.60
  4. Step 4: Simplify right side
    20,552,469.60x = 388,128,628,444,040.62
  5. Step 5: Solve for x
    x = 388,128,628,444,040.62/20,552,469.60
  6. Step 6: Final answer
    x = 18,884,768.40

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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.