Home / 21,509,134.20-29,682,229.95-11,719,659.42

Finding the Fourth Proportional to 21,509,134.20, 29,682,229.95 and 11,719,659.42

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Solution

The fourth proportional to 21,509,134.20, 29,682,229.95 and 11,719,659.42 is: 16,172,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,509,134.20 : 29,682,229.95 = 11,719,659.42 : x
  2. Step 2: Convert to fraction form
    21,509,134.20/29,682,229.95 = 11,719,659.42/x
  3. Step 3: Cross multiply
    21,509,134.20x = 29,682,229.95 × 11,719,659.42
  4. Step 4: Simplify right side
    21,509,134.20x = 347,865,625,840,123.62
  5. Step 5: Solve for x
    x = 347,865,625,840,123.62/21,509,134.20
  6. Step 6: Final answer
    x = 16,172,925.54

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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.