Home / 21,141,245.64-29,177,339.16-11,851,324.80

Finding the Fourth Proportional to 21,141,245.64, 29,177,339.16 and 11,851,324.80

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Solution

The fourth proportional to 21,141,245.64, 29,177,339.16 and 11,851,324.80 is: 16,356,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,141,245.64 : 29,177,339.16 = 11,851,324.80 : x
  2. Step 2: Convert to fraction form
    21,141,245.64/29,177,339.16 = 11,851,324.80/x
  3. Step 3: Cross multiply
    21,141,245.64x = 29,177,339.16 × 11,851,324.80
  4. Step 4: Simplify right side
    21,141,245.64x = 345,790,123,184,919.19
  5. Step 5: Solve for x
    x = 345,790,123,184,919.19/21,141,245.64
  6. Step 6: Final answer
    x = 16,356,184.92

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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.