Home / 21,182,277.78-29,229,204.18-11,887,715.94

Finding the Fourth Proportional to 21,182,277.78, 29,229,204.18 and 11,887,715.94

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Solution

The fourth proportional to 21,182,277.78, 29,229,204.18 and 11,887,715.94 is: 16,403,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182,277.78 : 29,229,204.18 = 11,887,715.94 : x
  2. Step 2: Convert to fraction form
    21,182,277.78/29,229,204.18 = 11,887,715.94/x
  3. Step 3: Cross multiply
    21,182,277.78x = 29,229,204.18 × 11,887,715.94
  4. Step 4: Simplify right side
    21,182,277.78x = 347,468,476,444,100.62
  5. Step 5: Solve for x
    x = 347,468,476,444,100.62/21,182,277.78
  6. Step 6: Final answer
    x = 16,403,735.24

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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.