Home / 21,181,729.59-29,229,182.65-11,887,504.64

Finding the Fourth Proportional to 21,181,729.59, 29,229,182.65 and 11,887,504.64

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Solution

The fourth proportional to 21,181,729.59, 29,229,182.65 and 11,887,504.64 is: 16,403,856.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,729.59 : 29,229,182.65 = 11,887,504.64 : x
  2. Step 2: Convert to fraction form
    21,181,729.59/29,229,182.65 = 11,887,504.64/x
  3. Step 3: Cross multiply
    21,181,729.59x = 29,229,182.65 × 11,887,504.64
  4. Step 4: Simplify right side
    21,181,729.59x = 347,462,044,375,282.50
  5. Step 5: Solve for x
    x = 347,462,044,375,282.50/21,181,729.59
  6. Step 6: Final answer
    x = 16,403,856.11

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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.