Home / 21,121,375.66-29,142,502.68-11,954,018.14

Finding the Fourth Proportional to 21,121,375.66, 29,142,502.68 and 11,954,018.14

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Solution

The fourth proportional to 21,121,375.66, 29,142,502.68 and 11,954,018.14 is: 16,493,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,375.66 : 29,142,502.68 = 11,954,018.14 : x
  2. Step 2: Convert to fraction form
    21,121,375.66/29,142,502.68 = 11,954,018.14/x
  3. Step 3: Cross multiply
    21,121,375.66x = 29,142,502.68 × 11,954,018.14
  4. Step 4: Simplify right side
    21,121,375.66x = 348,370,005,653,689.88
  5. Step 5: Solve for x
    x = 348,370,005,653,689.88/21,121,375.66
  6. Step 6: Final answer
    x = 16,493,717.61

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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.