Home / 12,089,928.80-18,134,893.20-8,263,553.60

Finding the Fourth Proportional to 12,089,928.80, 18,134,893.20 and 8,263,553.60

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Solution

The fourth proportional to 12,089,928.80, 18,134,893.20 and 8,263,553.60 is: 12,395,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089,928.80 : 18,134,893.20 = 8,263,553.60 : x
  2. Step 2: Convert to fraction form
    12,089,928.80/18,134,893.20 = 8,263,553.60/x
  3. Step 3: Cross multiply
    12,089,928.80x = 18,134,893.20 × 8,263,553.60
  4. Step 4: Simplify right side
    12,089,928.80x = 149,858,661,988,475.50
  5. Step 5: Solve for x
    x = 149,858,661,988,475.50/12,089,928.80
  6. Step 6: Final answer
    x = 12,395,330.40

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Double scale
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Similar ratio
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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.