Home / 21,921,731.62-30,251,367.21-12,132,585.70

Finding the Fourth Proportional to 21,921,731.62, 30,251,367.21 and 12,132,585.70

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Solution

The fourth proportional to 21,921,731.62, 30,251,367.21 and 12,132,585.70 is: 16,742,623.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921,731.62 : 30,251,367.21 = 12,132,585.70 : x
  2. Step 2: Convert to fraction form
    21,921,731.62/30,251,367.21 = 12,132,585.70/x
  3. Step 3: Cross multiply
    21,921,731.62x = 30,251,367.21 × 12,132,585.70
  4. Step 4: Simplify right side
    21,921,731.62x = 367,027,305,217,494.88
  5. Step 5: Solve for x
    x = 367,027,305,217,494.88/21,921,731.62
  6. Step 6: Final answer
    x = 16,742,623.78

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1.5x scale

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.