Home / 20,784,630.92-31,176,246.52-7,321,109

Finding the Fourth Proportional to 20,784,630.92, 31,176,246.52 and 7,321,109

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Solution

The fourth proportional to 20,784,630.92, 31,176,246.52 and 7,321,109 is: 10,981,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784,630.92 : 31,176,246.52 = 7,321,109 : x
  2. Step 2: Convert to fraction form
    20,784,630.92/31,176,246.52 = 7,321,109/x
  3. Step 3: Cross multiply
    20,784,630.92x = 31,176,246.52 × 7,321,109
  4. Step 4: Simplify right side
    20,784,630.92x = 228,244,698,983,790.69
  5. Step 5: Solve for x
    x = 228,244,698,983,790.69/20,784,630.92
  6. Step 6: Final answer
    x = 10,981,416.98

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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.