Home / 87,651,870.38-120,998,324.85-52,382,121.38

Finding the Fourth Proportional to 87,651,870.38, 120,998,324.85 and 52,382,121.38

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Solution

The fourth proportional to 87,651,870.38, 120,998,324.85 and 52,382,121.38 is: 72,310,481.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,651,870.38 : 120,998,324.85 = 52,382,121.38 : x
  2. Step 2: Convert to fraction form
    87,651,870.38/120,998,324.85 = 52,382,121.38/x
  3. Step 3: Cross multiply
    87,651,870.38x = 120,998,324.85 × 52,382,121.38
  4. Step 4: Simplify right side
    87,651,870.38x = 6,338,148,939,069,370
  5. Step 5: Solve for x
    x = 6,338,148,939,069,370/87,651,870.38
  6. Step 6: Final answer
    x = 72,310,481.36

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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.