Home / 5,419,520.80-8,128,489.88-1,580,311.55

Finding the Fourth Proportional to 5,419,520.80, 8,128,489.88 and 1,580,311.55

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Solution

The fourth proportional to 5,419,520.80, 8,128,489.88 and 1,580,311.55 is: 2,370,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419,520.80 : 8,128,489.88 = 1,580,311.55 : x
  2. Step 2: Convert to fraction form
    5,419,520.80/8,128,489.88 = 1,580,311.55/x
  3. Step 3: Cross multiply
    5,419,520.80x = 8,128,489.88 × 1,580,311.55
  4. Step 4: Simplify right side
    5,419,520.80x = 12,845,546,441,422.11
  5. Step 5: Solve for x
    x = 12,845,546,441,422.11/5,419,520.80
  6. Step 6: Final answer
    x = 2,370,236.58

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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.