Home / 7,161,701.25-9,883,148.79-3,898,540.76

Finding the Fourth Proportional to 7,161,701.25, 9,883,148.79 and 3,898,540.76

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Solution

The fourth proportional to 7,161,701.25, 9,883,148.79 and 3,898,540.76 is: 5,379,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,701.25 : 9,883,148.79 = 3,898,540.76 : x
  2. Step 2: Convert to fraction form
    7,161,701.25/9,883,148.79 = 3,898,540.76/x
  3. Step 3: Cross multiply
    7,161,701.25x = 9,883,148.79 × 3,898,540.76
  4. Step 4: Simplify right side
    7,161,701.25x = 38,529,858,360,163.46
  5. Step 5: Solve for x
    x = 38,529,858,360,163.46/7,161,701.25
  6. Step 6: Final answer
    x = 5,379,986.82

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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.