Home / 12,027,881.25-18,043,622.91-4,353,321.78

Finding the Fourth Proportional to 12,027,881.25, 18,043,622.91 and 4,353,321.78

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Solution

The fourth proportional to 12,027,881.25, 18,043,622.91 and 4,353,321.78 is: 6,530,634.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,027,881.25 : 18,043,622.91 = 4,353,321.78 : x
  2. Step 2: Convert to fraction form
    12,027,881.25/18,043,622.91 = 4,353,321.78/x
  3. Step 3: Cross multiply
    12,027,881.25x = 18,043,622.91 × 4,353,321.78
  4. Step 4: Simplify right side
    12,027,881.25x = 78,549,696,604,209.98
  5. Step 5: Solve for x
    x = 78,549,696,604,209.98/12,027,881.25
  6. Step 6: Final answer
    x = 6,530,634.53

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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.