Home / 3,129,067.29-4,685,191.67-1,985,638.79

Finding the Fourth Proportional to 3,129,067.29, 4,685,191.67 and 1,985,638.79

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Solution

The fourth proportional to 3,129,067.29, 4,685,191.67 and 1,985,638.79 is: 2,973,121.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,067.29 : 4,685,191.67 = 1,985,638.79 : x
  2. Step 2: Convert to fraction form
    3,129,067.29/4,685,191.67 = 1,985,638.79/x
  3. Step 3: Cross multiply
    3,129,067.29x = 4,685,191.67 × 1,985,638.79
  4. Step 4: Simplify right side
    3,129,067.29x = 9,303,098,335,213.96
  5. Step 5: Solve for x
    x = 9,303,098,335,213.96/3,129,067.29
  6. Step 6: Final answer
    x = 2,973,121.85

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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.