Home / 5,120,019.82-7,065,343.78-2,796,449.71

Finding the Fourth Proportional to 5,120,019.82, 7,065,343.78 and 2,796,449.71

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Solution

The fourth proportional to 5,120,019.82, 7,065,343.78 and 2,796,449.71 is: 3,858,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,019.82 : 7,065,343.78 = 2,796,449.71 : x
  2. Step 2: Convert to fraction form
    5,120,019.82/7,065,343.78 = 2,796,449.71/x
  3. Step 3: Cross multiply
    5,120,019.82x = 7,065,343.78 × 2,796,449.71
  4. Step 4: Simplify right side
    5,120,019.82x = 19,757,878,531,972.64
  5. Step 5: Solve for x
    x = 19,757,878,531,972.64/5,120,019.82
  6. Step 6: Final answer
    x = 3,858,945.71

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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.