Home / 13,608,037.20-20,388,436.20-12,757,731.60

Finding the Fourth Proportional to 13,608,037.20, 20,388,436.20 and 12,757,731.60

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Solution

The fourth proportional to 13,608,037.20, 20,388,436.20 and 12,757,731.60 is: 19,114,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,037.20 : 20,388,436.20 = 12,757,731.60 : x
  2. Step 2: Convert to fraction form
    13,608,037.20/20,388,436.20 = 12,757,731.60/x
  3. Step 3: Cross multiply
    13,608,037.20x = 20,388,436.20 × 12,757,731.60
  4. Step 4: Simplify right side
    13,608,037.20x = 260,110,196,783,323.91
  5. Step 5: Solve for x
    x = 260,110,196,783,323.91/13,608,037.20
  6. Step 6: Final answer
    x = 19,114,453.68

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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.