Home / 20,321,433.66-28,042,555.26-12,061,856.37

Finding the Fourth Proportional to 20,321,433.66, 28,042,555.26 and 12,061,856.37

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Solution

The fourth proportional to 20,321,433.66, 28,042,555.26 and 12,061,856.37 is: 16,644,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,433.66 : 28,042,555.26 = 12,061,856.37 : x
  2. Step 2: Convert to fraction form
    20,321,433.66/28,042,555.26 = 12,061,856.37/x
  3. Step 3: Cross multiply
    20,321,433.66x = 28,042,555.26 × 12,061,856.37
  4. Step 4: Simplify right side
    20,321,433.66x = 338,245,273,793,908
  5. Step 5: Solve for x
    x = 338,245,273,793,908/20,321,433.66
  6. Step 6: Final answer
    x = 16,644,754.47

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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.