Home / 21,650,067.78-29,875,838.07-11,858,807.42

Finding the Fourth Proportional to 21,650,067.78, 29,875,838.07 and 11,858,807.42

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Solution

The fourth proportional to 21,650,067.78, 29,875,838.07 and 11,858,807.42 is: 16,364,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650,067.78 : 29,875,838.07 = 11,858,807.42 : x
  2. Step 2: Convert to fraction form
    21,650,067.78/29,875,838.07 = 11,858,807.42/x
  3. Step 3: Cross multiply
    21,650,067.78x = 29,875,838.07 × 11,858,807.42
  4. Step 4: Simplify right side
    21,650,067.78x = 354,291,810,183,234.50
  5. Step 5: Solve for x
    x = 354,291,810,183,234.50/21,650,067.78
  6. Step 6: Final answer
    x = 16,364,466.56

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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.