Home / 20,784,625.92-31,176,239.04-7,321,104

Finding the Fourth Proportional to 20,784,625.92, 31,176,239.04 and 7,321,104

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Solution

The fourth proportional to 20,784,625.92, 31,176,239.04 and 7,321,104 is: 10,981,409.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,625.92 : 31,176,239.04 = 7,321,104 : x
  2. Step 2: Convert to fraction form
    20,784,625.92/31,176,239.04 = 7,321,104/x
  3. Step 3: Cross multiply
    20,784,625.92x = 31,176,239.04 × 7,321,104
  4. Step 4: Simplify right side
    20,784,625.92x = 228,244,488,340,700.16
  5. Step 5: Solve for x
    x = 228,244,488,340,700.16/20,784,625.92
  6. Step 6: Final answer
    x = 10,981,409.49

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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.