Home / 6,689,487.89-9,231,338.39-3,898,433.22

Finding the Fourth Proportional to 6,689,487.89, 9,231,338.39 and 3,898,433.22

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Solution

The fourth proportional to 6,689,487.89, 9,231,338.39 and 3,898,433.22 is: 5,379,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689,487.89 : 9,231,338.39 = 3,898,433.22 : x
  2. Step 2: Convert to fraction form
    6,689,487.89/9,231,338.39 = 3,898,433.22/x
  3. Step 3: Cross multiply
    6,689,487.89x = 9,231,338.39 × 3,898,433.22
  4. Step 4: Simplify right side
    6,689,487.89x = 35,987,756,225,145.15
  5. Step 5: Solve for x
    x = 35,987,756,225,145.15/6,689,487.89
  6. Step 6: Final answer
    x = 5,379,747.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.