Home / 7,225,921.92-9,974,577.60-5,420,338.56

Finding the Fourth Proportional to 7,225,921.92, 9,974,577.60 and 5,420,338.56

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Solution

The fourth proportional to 7,225,921.92, 9,974,577.60 and 5,420,338.56 is: 7,482,171.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225,921.92 : 9,974,577.60 = 5,420,338.56 : x
  2. Step 2: Convert to fraction form
    7,225,921.92/9,974,577.60 = 5,420,338.56/x
  3. Step 3: Cross multiply
    7,225,921.92x = 9,974,577.60 × 5,420,338.56
  4. Step 4: Simplify right side
    7,225,921.92x = 54,065,587,584,992.25
  5. Step 5: Solve for x
    x = 54,065,587,584,992.25/7,225,921.92
  6. Step 6: Final answer
    x = 7,482,171.57

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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.