Home / 27,990,851.38-38,625,989.83-15,601,965.22

Finding the Fourth Proportional to 27,990,851.38, 38,625,989.83 and 15,601,965.22

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Solution

The fourth proportional to 27,990,851.38, 38,625,989.83 and 15,601,965.22 is: 21,529,939.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990,851.38 : 38,625,989.83 = 15,601,965.22 : x
  2. Step 2: Convert to fraction form
    27,990,851.38/38,625,989.83 = 15,601,965.22/x
  3. Step 3: Cross multiply
    27,990,851.38x = 38,625,989.83 × 15,601,965.22
  4. Step 4: Simplify right side
    27,990,851.38x = 602,641,349,915,733.75
  5. Step 5: Solve for x
    x = 602,641,349,915,733.75/27,990,851.38
  6. Step 6: Final answer
    x = 21,529,939.97

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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.