Home / 12,219,436.24-18,329,154.39-3,121,553.84

Finding the Fourth Proportional to 12,219,436.24, 18,329,154.39 and 3,121,553.84

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Solution

The fourth proportional to 12,219,436.24, 18,329,154.39 and 3,121,553.84 is: 4,682,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219,436.24 : 18,329,154.39 = 3,121,553.84 : x
  2. Step 2: Convert to fraction form
    12,219,436.24/18,329,154.39 = 3,121,553.84/x
  3. Step 3: Cross multiply
    12,219,436.24x = 18,329,154.39 × 3,121,553.84
  4. Step 4: Simplify right side
    12,219,436.24x = 57,215,442,178,411.59
  5. Step 5: Solve for x
    x = 57,215,442,178,411.59/12,219,436.24
  6. Step 6: Final answer
    x = 4,682,330.76

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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.