Home / 21,378,194.40-32,067,291.60-18,723,986.40

Finding the Fourth Proportional to 21,378,194.40, 32,067,291.60 and 18,723,986.40

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Solution

The fourth proportional to 21,378,194.40, 32,067,291.60 and 18,723,986.40 is: 28,085,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378,194.40 : 32,067,291.60 = 18,723,986.40 : x
  2. Step 2: Convert to fraction form
    21,378,194.40/32,067,291.60 = 18,723,986.40/x
  3. Step 3: Cross multiply
    21,378,194.40x = 32,067,291.60 × 18,723,986.40
  4. Step 4: Simplify right side
    21,378,194.40x = 600,427,531,803,234.25
  5. Step 5: Solve for x
    x = 600,427,531,803,234.25/21,378,194.40
  6. Step 6: Final answer
    x = 28,085,979.60

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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.