Home / 13,621,804.60-20,422,537.35-8,229,318.70

Finding the Fourth Proportional to 13,621,804.60, 20,422,537.35 and 8,229,318.70

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Solution

The fourth proportional to 13,621,804.60, 20,422,537.35 and 8,229,318.70 is: 12,337,834.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,804.60 : 20,422,537.35 = 8,229,318.70 : x
  2. Step 2: Convert to fraction form
    13,621,804.60/20,422,537.35 = 8,229,318.70/x
  3. Step 3: Cross multiply
    13,621,804.60x = 20,422,537.35 × 8,229,318.70
  4. Step 4: Simplify right side
    13,621,804.60x = 168,063,568,515,803.47
  5. Step 5: Solve for x
    x = 168,063,568,515,803.47/13,621,804.60
  6. Step 6: Final answer
    x = 12,337,834.34

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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.