Home / 7,212,939.99-9,953,856.96-3,949,954.22

Finding the Fourth Proportional to 7,212,939.99, 9,953,856.96 and 3,949,954.22

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Solution

The fourth proportional to 7,212,939.99, 9,953,856.96 and 3,949,954.22 is: 5,450,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,939.99 : 9,953,856.96 = 3,949,954.22 : x
  2. Step 2: Convert to fraction form
    7,212,939.99/9,953,856.96 = 3,949,954.22/x
  3. Step 3: Cross multiply
    7,212,939.99x = 9,953,856.96 × 3,949,954.22
  4. Step 4: Simplify right side
    7,212,939.99x = 39,317,279,254,659.09
  5. Step 5: Solve for x
    x = 39,317,279,254,659.09/7,212,939.99
  6. Step 6: Final answer
    x = 5,450,936.69

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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.