Home / 81,512,556.85-122,268,835.28-54,302,777.65

Finding the Fourth Proportional to 81,512,556.85, 122,268,835.28 and 54,302,777.65

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Solution

The fourth proportional to 81,512,556.85, 122,268,835.28 and 54,302,777.65 is: 81,454,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512,556.85 : 122,268,835.28 = 54,302,777.65 : x
  2. Step 2: Convert to fraction form
    81,512,556.85/122,268,835.28 = 54,302,777.65/x
  3. Step 3: Cross multiply
    81,512,556.85x = 122,268,835.28 × 54,302,777.65
  4. Step 4: Simplify right side
    81,512,556.85x = 6,639,537,375,462,802
  5. Step 5: Solve for x
    x = 6,639,537,375,462,802/81,512,556.85
  6. Step 6: Final answer
    x = 81,454,166.48

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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.