Home / 21,181,730.09-29,229,183.35-11,887,505.15

Finding the Fourth Proportional to 21,181,730.09, 29,229,183.35 and 11,887,505.15

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Solution

The fourth proportional to 21,181,730.09, 29,229,183.35 and 11,887,505.15 is: 16,403,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,730.09 : 29,229,183.35 = 11,887,505.15 : x
  2. Step 2: Convert to fraction form
    21,181,730.09/29,229,183.35 = 11,887,505.15/x
  3. Step 3: Cross multiply
    21,181,730.09x = 29,229,183.35 × 11,887,505.15
  4. Step 4: Simplify right side
    21,181,730.09x = 347,462,067,397,835.81
  5. Step 5: Solve for x
    x = 347,462,067,397,835.81/21,181,730.09
  6. Step 6: Final answer
    x = 16,403,856.81

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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.