Home / 20,438,208.20-30,631,262.70-10,858,176.20

Finding the Fourth Proportional to 20,438,208.20, 30,631,262.70 and 10,858,176.20

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Solution

The fourth proportional to 20,438,208.20, 30,631,262.70 and 10,858,176.20 is: 16,273,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438,208.20 : 30,631,262.70 = 10,858,176.20 : x
  2. Step 2: Convert to fraction form
    20,438,208.20/30,631,262.70 = 10,858,176.20/x
  3. Step 3: Cross multiply
    20,438,208.20x = 30,631,262.70 × 10,858,176.20
  4. Step 4: Simplify right side
    20,438,208.20x = 332,599,647,625,087.69
  5. Step 5: Solve for x
    x = 332,599,647,625,087.69/20,438,208.20
  6. Step 6: Final answer
    x = 16,273,424.97

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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.