Home / 28,400,878.20-42,557,963.40-16,863,625.38

Finding the Fourth Proportional to 28,400,878.20, 42,557,963.40 and 16,863,625.38

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Solution

The fourth proportional to 28,400,878.20, 42,557,963.40 and 16,863,625.38 is: 25,269,695.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400,878.20 : 42,557,963.40 = 16,863,625.38 : x
  2. Step 2: Convert to fraction form
    28,400,878.20/42,557,963.40 = 16,863,625.38/x
  3. Step 3: Cross multiply
    28,400,878.20x = 42,557,963.40 × 16,863,625.38
  4. Step 4: Simplify right side
    28,400,878.20x = 717,681,551,713,351
  5. Step 5: Solve for x
    x = 717,681,551,713,351/28,400,878.20
  6. Step 6: Final answer
    x = 25,269,695.77

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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.