Home / 13,309,862.10-18,367,622.04-7,198,290.60

Finding the Fourth Proportional to 13,309,862.10, 18,367,622.04 and 7,198,290.60

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Solution

The fourth proportional to 13,309,862.10, 18,367,622.04 and 7,198,290.60 is: 9,933,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,862.10 : 18,367,622.04 = 7,198,290.60 : x
  2. Step 2: Convert to fraction form
    13,309,862.10/18,367,622.04 = 7,198,290.60/x
  3. Step 3: Cross multiply
    13,309,862.10x = 18,367,622.04 × 7,198,290.60
  4. Step 4: Simplify right side
    13,309,862.10x = 132,215,481,074,884.81
  5. Step 5: Solve for x
    x = 132,215,481,074,884.81/13,309,862.10
  6. Step 6: Final answer
    x = 9,933,647.70

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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.