Home / 13,309,853.10-18,367,609.62-7,198,281.60

Finding the Fourth Proportional to 13,309,853.10, 18,367,609.62 and 7,198,281.60

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Solution

The fourth proportional to 13,309,853.10, 18,367,609.62 and 7,198,281.60 is: 9,933,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,853.10 : 18,367,609.62 = 7,198,281.60 : x
  2. Step 2: Convert to fraction form
    13,309,853.10/18,367,609.62 = 7,198,281.60/x
  3. Step 3: Cross multiply
    13,309,853.10x = 18,367,609.62 × 7,198,281.60
  4. Step 4: Simplify right side
    13,309,853.10x = 132,215,226,363,629
  5. Step 5: Solve for x
    x = 132,215,226,363,629/13,309,853.10
  6. Step 6: Final answer
    x = 9,933,635.28

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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.