Home / 187,639,867.75-281,586,959.38-76,995,540.71

Finding the Fourth Proportional to 187,639,867.75, 281,586,959.38 and 76,995,540.71

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Solution

The fourth proportional to 187,639,867.75, 281,586,959.38 and 76,995,540.71 is: 115,545,488.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,639,867.75 : 281,586,959.38 = 76,995,540.71 : x
  2. Step 2: Convert to fraction form
    187,639,867.75/281,586,959.38 = 76,995,540.71/x
  3. Step 3: Cross multiply
    187,639,867.75x = 281,586,959.38 × 76,995,540.71
  4. Step 4: Simplify right side
    187,639,867.75x = 21,680,940,194,347,904
  5. Step 5: Solve for x
    x = 21,680,940,194,347,904/187,639,867.75
  6. Step 6: Final answer
    x = 115,545,488.57

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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.