Home / 6,689,475.14-9,231,320.79-3,898,420.47

Finding the Fourth Proportional to 6,689,475.14, 9,231,320.79 and 3,898,420.47

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Solution

The fourth proportional to 6,689,475.14, 9,231,320.79 and 3,898,420.47 is: 5,379,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689,475.14 : 9,231,320.79 = 3,898,420.47 : x
  2. Step 2: Convert to fraction form
    6,689,475.14/9,231,320.79 = 3,898,420.47/x
  3. Step 3: Cross multiply
    6,689,475.14x = 9,231,320.79 × 3,898,420.47
  4. Step 4: Simplify right side
    6,689,475.14x = 35,987,569,932,872.57
  5. Step 5: Solve for x
    x = 35,987,569,932,872.57/6,689,475.14
  6. Step 6: Final answer
    x = 5,379,729.98

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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.