Home / 143,584,515.26-198,143,939.79-87,825,839.72

Finding the Fourth Proportional to 143,584,515.26, 198,143,939.79 and 87,825,839.72

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Solution

The fourth proportional to 143,584,515.26, 198,143,939.79 and 87,825,839.72 is: 121,198,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,584,515.26 : 198,143,939.79 = 87,825,839.72 : x
  2. Step 2: Convert to fraction form
    143,584,515.26/198,143,939.79 = 87,825,839.72/x
  3. Step 3: Cross multiply
    143,584,515.26x = 198,143,939.79 × 87,825,839.72
  4. Step 4: Simplify right side
    143,584,515.26x = 17,402,157,897,485,870
  5. Step 5: Solve for x
    x = 17,402,157,897,485,870/143,584,515.26
  6. Step 6: Final answer
    x = 121,198,012.65

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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.