Home / 13,790,867.60-20,654,808.60-8,122,163.60

Finding the Fourth Proportional to 13,790,867.60, 20,654,808.60 and 8,122,163.60

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Solution

The fourth proportional to 13,790,867.60, 20,654,808.60 and 8,122,163.60 is: 12,164,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,867.60 : 20,654,808.60 = 8,122,163.60 : x
  2. Step 2: Convert to fraction form
    13,790,867.60/20,654,808.60 = 8,122,163.60/x
  3. Step 3: Cross multiply
    13,790,867.60x = 20,654,808.60 × 8,122,163.60
  4. Step 4: Simplify right side
    13,790,867.60x = 167,761,734,575,886.97
  5. Step 5: Solve for x
    x = 167,761,734,575,886.97/13,790,867.60
  6. Step 6: Final answer
    x = 12,164,697.64

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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.