Home / 3,979,163.90-5,970,006.92-1,420,322.18

Finding the Fourth Proportional to 3,979,163.90, 5,970,006.92 and 1,420,322.18

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Solution

The fourth proportional to 3,979,163.90, 5,970,006.92 and 1,420,322.18 is: 2,130,933.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,979,163.90 : 5,970,006.92 = 1,420,322.18 : x
  2. Step 2: Convert to fraction form
    3,979,163.90/5,970,006.92 = 1,420,322.18/x
  3. Step 3: Cross multiply
    3,979,163.90x = 5,970,006.92 × 1,420,322.18
  4. Step 4: Simplify right side
    3,979,163.90x = 8,479,333,216,930.26
  5. Step 5: Solve for x
    x = 8,479,333,216,930.26/3,979,163.90
  6. Step 6: Final answer
    x = 2,130,933.39

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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.