Home / 144,093,516.91-198,846,679.68-78,013,486.87

Finding the Fourth Proportional to 144,093,516.91, 198,846,679.68 and 78,013,486.87

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Solution

The fourth proportional to 144,093,516.91, 198,846,679.68 and 78,013,486.87 is: 107,657,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,093,516.91 : 198,846,679.68 = 78,013,486.87 : x
  2. Step 2: Convert to fraction form
    144,093,516.91/198,846,679.68 = 78,013,486.87/x
  3. Step 3: Cross multiply
    144,093,516.91x = 198,846,679.68 × 78,013,486.87
  4. Step 4: Simplify right side
    144,093,516.91x = 15,512,722,833,861,662
  5. Step 5: Solve for x
    x = 15,512,722,833,861,662/144,093,516.91
  6. Step 6: Final answer
    x = 107,657,326.76

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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.