Home / 21,428,508.64-29,571,558.96-11,639,144

Finding the Fourth Proportional to 21,428,508.64, 29,571,558.96 and 11,639,144

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Solution

The fourth proportional to 21,428,508.64, 29,571,558.96 and 11,639,144 is: 16,062,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,508.64 : 29,571,558.96 = 11,639,144 : x
  2. Step 2: Convert to fraction form
    21,428,508.64/29,571,558.96 = 11,639,144/x
  3. Step 3: Cross multiply
    21,428,508.64x = 29,571,558.96 × 11,639,144
  4. Step 4: Simplify right side
    21,428,508.64x = 344,187,633,039,930.25
  5. Step 5: Solve for x
    x = 344,187,633,039,930.25/21,428,508.64
  6. Step 6: Final answer
    x = 16,062,136.61

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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.