Home / 15,125,086.97-20,872,868.79-8,249,569.03

Finding the Fourth Proportional to 15,125,086.97, 20,872,868.79 and 8,249,569.03

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Solution

The fourth proportional to 15,125,086.97, 20,872,868.79 and 8,249,569.03 is: 11,384,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125,086.97 : 20,872,868.79 = 8,249,569.03 : x
  2. Step 2: Convert to fraction form
    15,125,086.97/20,872,868.79 = 8,249,569.03/x
  3. Step 3: Cross multiply
    15,125,086.97x = 20,872,868.79 × 8,249,569.03
  4. Step 4: Simplify right side
    15,125,086.97x = 172,192,171,947,844.12
  5. Step 5: Solve for x
    x = 172,192,171,947,844.12/15,125,086.97
  6. Step 6: Final answer
    x = 11,384,540.95

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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.