Home / 7,120,239.11-9,823,512.89-4,022,309.87

Finding the Fourth Proportional to 7,120,239.11, 9,823,512.89 and 4,022,309.87

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Solution

The fourth proportional to 7,120,239.11, 9,823,512.89 and 4,022,309.87 is: 5,549,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,239.11 : 9,823,512.89 = 4,022,309.87 : x
  2. Step 2: Convert to fraction form
    7,120,239.11/9,823,512.89 = 4,022,309.87/x
  3. Step 3: Cross multiply
    7,120,239.11x = 9,823,512.89 × 4,022,309.87
  4. Step 4: Simplify right side
    7,120,239.11x = 39,513,212,816,457.44
  5. Step 5: Solve for x
    x = 39,513,212,816,457.44/7,120,239.11
  6. Step 6: Final answer
    x = 5,549,422.18

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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.