Home / 28,085,499.28-38,757,979.56-15,208,443.28

Finding the Fourth Proportional to 28,085,499.28, 38,757,979.56 and 15,208,443.28

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Solution

The fourth proportional to 28,085,499.28, 38,757,979.56 and 15,208,443.28 is: 20,987,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,499.28 : 38,757,979.56 = 15,208,443.28 : x
  2. Step 2: Convert to fraction form
    28,085,499.28/38,757,979.56 = 15,208,443.28/x
  3. Step 3: Cross multiply
    28,085,499.28x = 38,757,979.56 × 15,208,443.28
  4. Step 4: Simplify right side
    28,085,499.28x = 589,448,533,785,659.38
  5. Step 5: Solve for x
    x = 589,448,533,785,659.38/28,085,499.28
  6. Step 6: Final answer
    x = 20,987,646.61

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1.5x scale

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.