Home / 5,120,021.82-7,065,346.54-2,796,451.71

Finding the Fourth Proportional to 5,120,021.82, 7,065,346.54 and 2,796,451.71

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Solution

The fourth proportional to 5,120,021.82, 7,065,346.54 and 2,796,451.71 is: 3,858,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,021.82 : 7,065,346.54 = 2,796,451.71 : x
  2. Step 2: Convert to fraction form
    5,120,021.82/7,065,346.54 = 2,796,451.71/x
  3. Step 3: Cross multiply
    5,120,021.82x = 7,065,346.54 × 2,796,451.71
  4. Step 4: Simplify right side
    5,120,021.82x = 19,757,900,413,525.58
  5. Step 5: Solve for x
    x = 19,757,900,413,525.58/5,120,021.82
  6. Step 6: Final answer
    x = 3,858,948.48

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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.