Home / 7,381,128.21-10,185,963.32-4,117,943.61

Finding the Fourth Proportional to 7,381,128.21, 10,185,963.32 and 4,117,943.61

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Solution

The fourth proportional to 7,381,128.21, 10,185,963.32 and 4,117,943.61 is: 5,682,765.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381,128.21 : 10,185,963.32 = 4,117,943.61 : x
  2. Step 2: Convert to fraction form
    7,381,128.21/10,185,963.32 = 4,117,943.61/x
  3. Step 3: Cross multiply
    7,381,128.21x = 10,185,963.32 × 4,117,943.61
  4. Step 4: Simplify right side
    7,381,128.21x = 41,945,222,544,698.66
  5. Step 5: Solve for x
    x = 41,945,222,544,698.66/7,381,128.21
  6. Step 6: Final answer
    x = 5,682,765.74

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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.