Home / 13,971,556.40-20,915,344.20-8,288,855.60

Finding the Fourth Proportional to 13,971,556.40, 20,915,344.20 and 8,288,855.60

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Solution

The fourth proportional to 13,971,556.40, 20,915,344.20 and 8,288,855.60 is: 12,408,371.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,556.40 : 20,915,344.20 = 8,288,855.60 : x
  2. Step 2: Convert to fraction form
    13,971,556.40/20,915,344.20 = 8,288,855.60/x
  3. Step 3: Cross multiply
    13,971,556.40x = 20,915,344.20 × 8,288,855.60
  4. Step 4: Simplify right side
    13,971,556.40x = 173,364,267,898,097.50
  5. Step 5: Solve for x
    x = 173,364,267,898,097.50/13,971,556.40
  6. Step 6: Final answer
    x = 12,408,371.90

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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.