Home / 39,198,148.62-54,093,161.79-21,794,359.02

Finding the Fourth Proportional to 39,198,148.62, 54,093,161.79 and 21,794,359.02

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Solution

The fourth proportional to 39,198,148.62, 54,093,161.79 and 21,794,359.02 is: 30,076,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198,148.62 : 54,093,161.79 = 21,794,359.02 : x
  2. Step 2: Convert to fraction form
    39,198,148.62/54,093,161.79 = 21,794,359.02/x
  3. Step 3: Cross multiply
    39,198,148.62x = 54,093,161.79 × 21,794,359.02
  4. Step 4: Simplify right side
    39,198,148.62x = 1,178,925,788,578,205.75
  5. Step 5: Solve for x
    x = 1,178,925,788,578,205.75/39,198,148.62
  6. Step 6: Final answer
    x = 30,076,057.93

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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.