Home / 12,465,465.71-18,704,120.16-8,633,185.61

Finding the Fourth Proportional to 12,465,465.71, 18,704,120.16 and 8,633,185.61

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Solution

The fourth proportional to 12,465,465.71, 18,704,120.16 and 8,633,185.61 is: 12,953,879.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465,465.71 : 18,704,120.16 = 8,633,185.61 : x
  2. Step 2: Convert to fraction form
    12,465,465.71/18,704,120.16 = 8,633,185.61/x
  3. Step 3: Cross multiply
    12,465,465.71x = 18,704,120.16 × 8,633,185.61
  4. Step 4: Simplify right side
    12,465,465.71x = 161,476,141,013,022.88
  5. Step 5: Solve for x
    x = 161,476,141,013,022.88/12,465,465.71
  6. Step 6: Final answer
    x = 12,953,879.52

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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.