Home / 7,381,129.71-10,185,965.39-4,117,945.11

Finding the Fourth Proportional to 7,381,129.71, 10,185,965.39 and 4,117,945.11

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Solution

The fourth proportional to 7,381,129.71, 10,185,965.39 and 4,117,945.11 is: 5,682,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,129.71 : 10,185,965.39 = 4,117,945.11 : x
  2. Step 2: Convert to fraction form
    7,381,129.71/10,185,965.39 = 4,117,945.11/x
  3. Step 3: Cross multiply
    7,381,129.71x = 10,185,965.39 × 4,117,945.11
  4. Step 4: Simplify right side
    7,381,129.71x = 41,945,246,347,790.02
  5. Step 5: Solve for x
    x = 41,945,246,347,790.02/7,381,129.71
  6. Step 6: Final answer
    x = 5,682,767.81

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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.