Home / 21,150,906.24-29,185,881.60-11,981,585.28

Finding the Fourth Proportional to 21,150,906.24, 29,185,881.60 and 11,981,585.28

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Solution

The fourth proportional to 21,150,906.24, 29,185,881.60 and 11,981,585.28 is: 16,533,245.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,150,906.24 : 29,185,881.60 = 11,981,585.28 : x
  2. Step 2: Convert to fraction form
    21,150,906.24/29,185,881.60 = 11,981,585.28/x
  3. Step 3: Cross multiply
    21,150,906.24x = 29,185,881.60 × 11,981,585.28
  4. Step 4: Simplify right side
    21,150,906.24x = 349,693,129,362,382.88
  5. Step 5: Solve for x
    x = 349,693,129,362,382.88/21,150,906.24
  6. Step 6: Final answer
    x = 16,533,245.69

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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.