Home / 12,213,190.20-18,319,785.30-3,238,649.40

Finding the Fourth Proportional to 12,213,190.20, 18,319,785.30 and 3,238,649.40

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Solution

The fourth proportional to 12,213,190.20, 18,319,785.30 and 3,238,649.40 is: 4,857,974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213,190.20 : 18,319,785.30 = 3,238,649.40 : x
  2. Step 2: Convert to fraction form
    12,213,190.20/18,319,785.30 = 3,238,649.40/x
  3. Step 3: Cross multiply
    12,213,190.20x = 18,319,785.30 × 3,238,649.40
  4. Step 4: Simplify right side
    12,213,190.20x = 59,331,361,669,973.82
  5. Step 5: Solve for x
    x = 59,331,361,669,973.82/12,213,190.20
  6. Step 6: Final answer
    x = 4,857,974.10

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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.