Home / 10,987,180.80-16,476,105.60-5,309,145.60

Finding the Fourth Proportional to 10,987,180.80, 16,476,105.60 and 5,309,145.60

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Solution

The fourth proportional to 10,987,180.80, 16,476,105.60 and 5,309,145.60 is: 7,961,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987,180.80 : 16,476,105.60 = 5,309,145.60 : x
  2. Step 2: Convert to fraction form
    10,987,180.80/16,476,105.60 = 5,309,145.60/x
  3. Step 3: Cross multiply
    10,987,180.80x = 16,476,105.60 × 5,309,145.60
  4. Step 4: Simplify right side
    10,987,180.80x = 87,474,043,551,375.36
  5. Step 5: Solve for x
    x = 87,474,043,551,375.36/10,987,180.80
  6. Step 6: Final answer
    x = 7,961,463.92

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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.