Home / 5,378,639.20-8,056,899.60-3,697,640.80

Finding the Fourth Proportional to 5,378,639.20, 8,056,899.60 and 3,697,640.80

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Solution

The fourth proportional to 5,378,639.20, 8,056,899.60 and 3,697,640.80 is: 5,538,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,378,639.20 : 8,056,899.60 = 3,697,640.80 : x
  2. Step 2: Convert to fraction form
    5,378,639.20/8,056,899.60 = 3,697,640.80/x
  3. Step 3: Cross multiply
    5,378,639.20x = 8,056,899.60 × 3,697,640.80
  4. Step 4: Simplify right side
    5,378,639.20x = 29,791,520,682,463.68
  5. Step 5: Solve for x
    x = 29,791,520,682,463.68/5,378,639.20
  6. Step 6: Final answer
    x = 5,538,858.36

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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.