Home / 28,400,878.70-42,557,964.15-16,863,625.88

Finding the Fourth Proportional to 28,400,878.70, 42,557,964.15 and 16,863,625.88

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Solution

The fourth proportional to 28,400,878.70, 42,557,964.15 and 16,863,625.88 is: 25,269,696.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400,878.70 : 42,557,964.15 = 16,863,625.88 : x
  2. Step 2: Convert to fraction form
    28,400,878.70/42,557,964.15 = 16,863,625.88/x
  3. Step 3: Cross multiply
    28,400,878.70x = 42,557,964.15 × 16,863,625.88
  4. Step 4: Simplify right side
    28,400,878.70x = 717,681,585,640,052.12
  5. Step 5: Solve for x
    x = 717,681,585,640,052.12/28,400,878.70
  6. Step 6: Final answer
    x = 25,269,696.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.