Home / 7,241,591.76-9,993,572.72-3,978,617.84

Finding the Fourth Proportional to 7,241,591.76, 9,993,572.72 and 3,978,617.84

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Solution

The fourth proportional to 7,241,591.76, 9,993,572.72 and 3,978,617.84 is: 5,490,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,241,591.76 : 9,993,572.72 = 3,978,617.84 : x
  2. Step 2: Convert to fraction form
    7,241,591.76/9,993,572.72 = 3,978,617.84/x
  3. Step 3: Cross multiply
    7,241,591.76x = 9,993,572.72 × 3,978,617.84
  4. Step 4: Simplify right side
    7,241,591.76x = 39,760,606,709,129.33
  5. Step 5: Solve for x
    x = 39,760,606,709,129.33/7,241,591.76
  6. Step 6: Final answer
    x = 5,490,589.37

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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.