Home / 5,429,286.90-8,142,121.94-2,189,987.96

Finding the Fourth Proportional to 5,429,286.90, 8,142,121.94 and 2,189,987.96

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Solution

The fourth proportional to 5,429,286.90, 8,142,121.94 and 2,189,987.96 is: 3,284,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,286.90 : 8,142,121.94 = 2,189,987.96 : x
  2. Step 2: Convert to fraction form
    5,429,286.90/8,142,121.94 = 2,189,987.96/x
  3. Step 3: Cross multiply
    5,429,286.90x = 8,142,121.94 × 2,189,987.96
  4. Step 4: Simplify right side
    5,429,286.90x = 17,831,148,965,791.29
  5. Step 5: Solve for x
    x = 17,831,148,965,791.29/5,429,286.90
  6. Step 6: Final answer
    x = 3,284,252.48

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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.