Home / 3,609,638.10-4,981,300.61-1,978,109.66

Finding the Fourth Proportional to 3,609,638.10, 4,981,300.61 and 1,978,109.66

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Solution

The fourth proportional to 3,609,638.10, 4,981,300.61 and 1,978,109.66 is: 2,729,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609,638.10 : 4,981,300.61 = 1,978,109.66 : x
  2. Step 2: Convert to fraction form
    3,609,638.10/4,981,300.61 = 1,978,109.66/x
  3. Step 3: Cross multiply
    3,609,638.10x = 4,981,300.61 × 1,978,109.66
  4. Step 4: Simplify right side
    3,609,638.10x = 9,853,558,821,207.84
  5. Step 5: Solve for x
    x = 9,853,558,821,207.84/3,609,638.10
  6. Step 6: Final answer
    x = 2,729,791.34

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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.