Home / 21,428,814.54-29,571,981.39-11,639,450.46

Finding the Fourth Proportional to 21,428,814.54, 29,571,981.39 and 11,639,450.46

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Solution

The fourth proportional to 21,428,814.54, 29,571,981.39 and 11,639,450.46 is: 16,062,559.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,814.54 : 29,571,981.39 = 11,639,450.46 : x
  2. Step 2: Convert to fraction form
    21,428,814.54/29,571,981.39 = 11,639,450.46/x
  3. Step 3: Cross multiply
    21,428,814.54x = 29,571,981.39 × 11,639,450.46
  4. Step 4: Simplify right side
    21,428,814.54x = 344,201,612,392,947
  5. Step 5: Solve for x
    x = 344,201,612,392,947/21,428,814.54
  6. Step 6: Final answer
    x = 16,062,559.68

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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.