Home / 87,743,145.31-121,211,668.01-70,078,855.95

Finding the Fourth Proportional to 87,743,145.31, 121,211,668.01 and 70,078,855.95

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Solution

The fourth proportional to 87,743,145.31, 121,211,668.01 and 70,078,855.95 is: 96,809,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743,145.31 : 121,211,668.01 = 70,078,855.95 : x
  2. Step 2: Convert to fraction form
    87,743,145.31/121,211,668.01 = 70,078,855.95/x
  3. Step 3: Cross multiply
    87,743,145.31x = 121,211,668.01 × 70,078,855.95
  4. Step 4: Simplify right side
    87,743,145.31x = 8,494,375,022,107,211
  5. Step 5: Solve for x
    x = 8,494,375,022,107,211/87,743,145.31
  6. Step 6: Final answer
    x = 96,809,556.94

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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.