Home / 7,161,352.22-9,882,655.78-3,898,156.86

Finding the Fourth Proportional to 7,161,352.22, 9,882,655.78 and 3,898,156.86

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Solution

The fourth proportional to 7,161,352.22, 9,882,655.78 and 3,898,156.86 is: 5,379,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,352.22 : 9,882,655.78 = 3,898,156.86 : x
  2. Step 2: Convert to fraction form
    7,161,352.22/9,882,655.78 = 3,898,156.86/x
  3. Step 3: Cross multiply
    7,161,352.22x = 9,882,655.78 × 3,898,156.86
  4. Step 4: Simplify right side
    7,161,352.22x = 38,524,142,423,825.65
  5. Step 5: Solve for x
    x = 38,524,142,423,825.65/7,161,352.22
  6. Step 6: Final answer
    x = 5,379,450.87

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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.