Home / 3,938,181-5,434,694.64-2,127,345

Finding the Fourth Proportional to 3,938,181, 5,434,694.64 and 2,127,345

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Solution

The fourth proportional to 3,938,181, 5,434,694.64 and 2,127,345 is: 2,935,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,181 : 5,434,694.64 = 2,127,345 : x
  2. Step 2: Convert to fraction form
    3,938,181/5,434,694.64 = 2,127,345/x
  3. Step 3: Cross multiply
    3,938,181x = 5,434,694.64 × 2,127,345
  4. Step 4: Simplify right side
    3,938,181x = 11,561,470,468,930.80
  5. Step 5: Solve for x
    x = 11,561,470,468,930.80/3,938,181
  6. Step 6: Final answer
    x = 2,935,738.73

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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.