Home / 12,165,449.47-18,245,848.60-3,645,785.95

Finding the Fourth Proportional to 12,165,449.47, 18,245,848.60 and 3,645,785.95

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Solution

The fourth proportional to 12,165,449.47, 18,245,848.60 and 3,645,785.95 is: 5,467,981.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,165,449.47 : 18,245,848.60 = 3,645,785.95 : x
  2. Step 2: Convert to fraction form
    12,165,449.47/18,245,848.60 = 3,645,785.95/x
  3. Step 3: Cross multiply
    12,165,449.47x = 18,245,848.60 × 3,645,785.95
  4. Step 4: Simplify right side
    12,165,449.47x = 66,520,458,471,707.18
  5. Step 5: Solve for x
    x = 66,520,458,471,707.18/12,165,449.47
  6. Step 6: Final answer
    x = 5,467,981.98

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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.