Home / 8,122,862.40-12,188,959.20-3,077,793.60

Finding the Fourth Proportional to 8,122,862.40, 12,188,959.20 and 3,077,793.60

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Solution

The fourth proportional to 8,122,862.40, 12,188,959.20 and 3,077,793.60 is: 4,618,458.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122,862.40 : 12,188,959.20 = 3,077,793.60 : x
  2. Step 2: Convert to fraction form
    8,122,862.40/12,188,959.20 = 3,077,793.60/x
  3. Step 3: Cross multiply
    8,122,862.40x = 12,188,959.20 × 3,077,793.60
  4. Step 4: Simplify right side
    8,122,862.40x = 37,515,100,616,421.12
  5. Step 5: Solve for x
    x = 37,515,100,616,421.12/8,122,862.40
  6. Step 6: Final answer
    x = 4,618,458.22

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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.