Home / 7,241,149.87-9,992,889.17-3,978,266.15

Finding the Fourth Proportional to 7,241,149.87, 9,992,889.17 and 3,978,266.15

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Solution

The fourth proportional to 7,241,149.87, 9,992,889.17 and 3,978,266.15 is: 5,490,063.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241,149.87 : 9,992,889.17 = 3,978,266.15 : x
  2. Step 2: Convert to fraction form
    7,241,149.87/9,992,889.17 = 3,978,266.15/x
  3. Step 3: Cross multiply
    7,241,149.87x = 9,992,889.17 × 3,978,266.15
  4. Step 4: Simplify right side
    7,241,149.87x = 39,754,372,745,721.98
  5. Step 5: Solve for x
    x = 39,754,372,745,721.98/7,241,149.87
  6. Step 6: Final answer
    x = 5,490,063.52

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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.