Home / 12,021,415.20-18,043,932.60-5,962,987.80

Finding the Fourth Proportional to 12,021,415.20, 18,043,932.60 and 5,962,987.80

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Solution

The fourth proportional to 12,021,415.20, 18,043,932.60 and 5,962,987.80 is: 8,950,339.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021,415.20 : 18,043,932.60 = 5,962,987.80 : x
  2. Step 2: Convert to fraction form
    12,021,415.20/18,043,932.60 = 5,962,987.80/x
  3. Step 3: Cross multiply
    12,021,415.20x = 18,043,932.60 × 5,962,987.80
  4. Step 4: Simplify right side
    12,021,415.20x = 107,595,749,957,822.28
  5. Step 5: Solve for x
    x = 107,595,749,957,822.28/12,021,415.20
  6. Step 6: Final answer
    x = 8,950,339.72

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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.