Home / 3,856,940.40-5,322,219.84-2,137,914.72

Finding the Fourth Proportional to 3,856,940.40, 5,322,219.84 and 2,137,914.72

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Solution

The fourth proportional to 3,856,940.40, 5,322,219.84 and 2,137,914.72 is: 2,950,123.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856,940.40 : 5,322,219.84 = 2,137,914.72 : x
  2. Step 2: Convert to fraction form
    3,856,940.40/5,322,219.84 = 2,137,914.72/x
  3. Step 3: Cross multiply
    3,856,940.40x = 5,322,219.84 × 2,137,914.72
  4. Step 4: Simplify right side
    3,856,940.40x = 11,378,452,139,012.04
  5. Step 5: Solve for x
    x = 11,378,452,139,012.04/3,856,940.40
  6. Step 6: Final answer
    x = 2,950,123.92

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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.