Home / 8,219,743.80-12,331,365.30-2,540,542.20

Finding the Fourth Proportional to 8,219,743.80, 12,331,365.30 and 2,540,542.20

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Solution

The fourth proportional to 8,219,743.80, 12,331,365.30 and 2,540,542.20 is: 3,811,354.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219,743.80 : 12,331,365.30 = 2,540,542.20 : x
  2. Step 2: Convert to fraction form
    8,219,743.80/12,331,365.30 = 2,540,542.20/x
  3. Step 3: Cross multiply
    8,219,743.80x = 12,331,365.30 × 2,540,542.20
  4. Step 4: Simplify right side
    8,219,743.80x = 31,328,353,928,265.66
  5. Step 5: Solve for x
    x = 31,328,353,928,265.66/8,219,743.80
  6. Step 6: Final answer
    x = 3,811,354.06

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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.