Home / 8,219,745.30-12,331,367.55-2,540,543.70

Finding the Fourth Proportional to 8,219,745.30, 12,331,367.55 and 2,540,543.70

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Solution

The fourth proportional to 8,219,745.30, 12,331,367.55 and 2,540,543.70 is: 3,811,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219,745.30 : 12,331,367.55 = 2,540,543.70 : x
  2. Step 2: Convert to fraction form
    8,219,745.30/12,331,367.55 = 2,540,543.70/x
  3. Step 3: Cross multiply
    8,219,745.30x = 12,331,367.55 × 2,540,543.70
  4. Step 4: Simplify right side
    8,219,745.30x = 31,328,378,141,536.94
  5. Step 5: Solve for x
    x = 31,328,378,141,536.94/8,219,745.30
  6. Step 6: Final answer
    x = 3,811,356.31

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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.