Home / 20,139,879.29-27,796,366.62-11,881,960.47

Finding the Fourth Proportional to 20,139,879.29, 27,796,366.62 and 11,881,960.47

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Solution

The fourth proportional to 20,139,879.29, 27,796,366.62 and 11,881,960.47 is: 16,399,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,879.29 : 27,796,366.62 = 11,881,960.47 : x
  2. Step 2: Convert to fraction form
    20,139,879.29/27,796,366.62 = 11,881,960.47/x
  3. Step 3: Cross multiply
    20,139,879.29x = 27,796,366.62 × 11,881,960.47
  4. Step 4: Simplify right side
    20,139,879.29x = 330,275,329,388,467.56
  5. Step 5: Solve for x
    x = 330,275,329,388,467.56/20,139,879.29
  6. Step 6: Final answer
    x = 16,399,071.95

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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.