Home / 13,494,406.80-20,209,432.82-8,621,383.52

Finding the Fourth Proportional to 13,494,406.80, 20,209,432.82 and 8,621,383.52

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Solution

The fourth proportional to 13,494,406.80, 20,209,432.82 and 8,621,383.52 is: 12,911,517.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,494,406.80 : 20,209,432.82 = 8,621,383.52 : x
  2. Step 2: Convert to fraction form
    13,494,406.80/20,209,432.82 = 8,621,383.52/x
  3. Step 3: Cross multiply
    13,494,406.80x = 20,209,432.82 × 8,621,383.52
  4. Step 4: Simplify right side
    13,494,406.80x = 174,233,271,070,311.81
  5. Step 5: Solve for x
    x = 174,233,271,070,311.81/13,494,406.80
  6. Step 6: Final answer
    x = 12,911,517.61

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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.