Home / 13,790,869.60-20,654,811.60-8,122,165.60

Finding the Fourth Proportional to 13,790,869.60, 20,654,811.60 and 8,122,165.60

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Solution

The fourth proportional to 13,790,869.60, 20,654,811.60 and 8,122,165.60 is: 12,164,700.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,869.60 : 20,654,811.60 = 8,122,165.60 : x
  2. Step 2: Convert to fraction form
    13,790,869.60/20,654,811.60 = 8,122,165.60/x
  3. Step 3: Cross multiply
    13,790,869.60x = 20,654,811.60 × 8,122,165.60
  4. Step 4: Simplify right side
    13,790,869.60x = 167,761,800,252,000.97
  5. Step 5: Solve for x
    x = 167,761,800,252,000.97/13,790,869.60
  6. Step 6: Final answer
    x = 12,164,700.64

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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.