Home / 12,068,863.11-18,111,344.71-4,392,505.92

Finding the Fourth Proportional to 12,068,863.11, 18,111,344.71 and 4,392,505.92

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Solution

The fourth proportional to 12,068,863.11, 18,111,344.71 and 4,392,505.92 is: 6,591,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,068,863.11 : 18,111,344.71 = 4,392,505.92 : x
  2. Step 2: Convert to fraction form
    12,068,863.11/18,111,344.71 = 4,392,505.92/x
  3. Step 3: Cross multiply
    12,068,863.11x = 18,111,344.71 × 4,392,505.92
  4. Step 4: Simplify right side
    12,068,863.11x = 79,554,188,857,835.69
  5. Step 5: Solve for x
    x = 79,554,188,857,835.69/12,068,863.11
  6. Step 6: Final answer
    x = 6,591,688.72

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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.