Home / 18,378,091.60-27,567,137.40-4,914,919.60

Finding the Fourth Proportional to 18,378,091.60, 27,567,137.40 and 4,914,919.60

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Solution

The fourth proportional to 18,378,091.60, 27,567,137.40 and 4,914,919.60 is: 7,372,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378,091.60 : 27,567,137.40 = 4,914,919.60 : x
  2. Step 2: Convert to fraction form
    18,378,091.60/27,567,137.40 = 4,914,919.60/x
  3. Step 3: Cross multiply
    18,378,091.60x = 27,567,137.40 × 4,914,919.60
  4. Step 4: Simplify right side
    18,378,091.60x = 135,490,263,923,153.02
  5. Step 5: Solve for x
    x = 135,490,263,923,153.02/18,378,091.60
  6. Step 6: Final answer
    x = 7,372,379.40

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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.