Home / 28,085,497.28-38,757,976.80-15,208,441.28

Finding the Fourth Proportional to 28,085,497.28, 38,757,976.80 and 15,208,441.28

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Solution

The fourth proportional to 28,085,497.28, 38,757,976.80 and 15,208,441.28 is: 20,987,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,497.28 : 38,757,976.80 = 15,208,441.28 : x
  2. Step 2: Convert to fraction form
    28,085,497.28/38,757,976.80 = 15,208,441.28/x
  3. Step 3: Cross multiply
    28,085,497.28x = 38,757,976.80 × 15,208,441.28
  4. Step 4: Simplify right side
    28,085,497.28x = 589,448,414,294,402.25
  5. Step 5: Solve for x
    x = 589,448,414,294,402.25/28,085,497.28
  6. Step 6: Final answer
    x = 20,987,643.85

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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.