Home / 12,940,178.52-17,863,390.32-11,167,023.18

Finding the Fourth Proportional to 12,940,178.52, 17,863,390.32 and 11,167,023.18

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Solution

The fourth proportional to 12,940,178.52, 17,863,390.32 and 11,167,023.18 is: 15,415,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940,178.52 : 17,863,390.32 = 11,167,023.18 : x
  2. Step 2: Convert to fraction form
    12,940,178.52/17,863,390.32 = 11,167,023.18/x
  3. Step 3: Cross multiply
    12,940,178.52x = 17,863,390.32 × 11,167,023.18
  4. Step 4: Simplify right side
    12,940,178.52x = 199,480,893,776,827.62
  5. Step 5: Solve for x
    x = 199,480,893,776,827.62/12,940,178.52
  6. Step 6: Final answer
    x = 15,415,621.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.