Home / 20,117,582.28-30,180,872.97-7,338,087.54

Finding the Fourth Proportional to 20,117,582.28, 30,180,872.97 and 7,338,087.54

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Solution

The fourth proportional to 20,117,582.28, 30,180,872.97 and 7,338,087.54 is: 11,008,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,582.28 : 30,180,872.97 = 7,338,087.54 : x
  2. Step 2: Convert to fraction form
    20,117,582.28/30,180,872.97 = 7,338,087.54/x
  3. Step 3: Cross multiply
    20,117,582.28x = 30,180,872.97 × 7,338,087.54
  4. Step 4: Simplify right side
    20,117,582.28x = 221,469,887,887,479.78
  5. Step 5: Solve for x
    x = 221,469,887,887,479.78/20,117,582.28
  6. Step 6: Final answer
    x = 11,008,772.57

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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.