Home / 39,456,578.58-54,451,976.24-21,815,154.70

Finding the Fourth Proportional to 39,456,578.58, 54,451,976.24 and 21,815,154.70

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Solution

The fourth proportional to 39,456,578.58, 54,451,976.24 and 21,815,154.70 is: 30,105,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456,578.58 : 54,451,976.24 = 21,815,154.70 : x
  2. Step 2: Convert to fraction form
    39,456,578.58/54,451,976.24 = 21,815,154.70/x
  3. Step 3: Cross multiply
    39,456,578.58x = 54,451,976.24 × 21,815,154.70
  4. Step 4: Simplify right side
    39,456,578.58x = 1,187,878,285,314,732.25
  5. Step 5: Solve for x
    x = 1,187,878,285,314,732.25/39,456,578.58
  6. Step 6: Final answer
    x = 30,105,962.76

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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.