Home / 3,418,974.80-5,128,462.20-2,621,813.30

Finding the Fourth Proportional to 3,418,974.80, 5,128,462.20 and 2,621,813.30

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Solution

The fourth proportional to 3,418,974.80, 5,128,462.20 and 2,621,813.30 is: 3,932,719.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418,974.80 : 5,128,462.20 = 2,621,813.30 : x
  2. Step 2: Convert to fraction form
    3,418,974.80/5,128,462.20 = 2,621,813.30/x
  3. Step 3: Cross multiply
    3,418,974.80x = 5,128,462.20 × 2,621,813.30
  4. Step 4: Simplify right side
    3,418,974.80x = 13,445,870,404,507.26
  5. Step 5: Solve for x
    x = 13,445,870,404,507.26/3,418,974.80
  6. Step 6: Final answer
    x = 3,932,719.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.