Home / 10,915,501.20-16,370,955.45-5,519,078.70

Finding the Fourth Proportional to 10,915,501.20, 16,370,955.45 and 5,519,078.70

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Solution

The fourth proportional to 10,915,501.20, 16,370,955.45 and 5,519,078.70 is: 8,277,456.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915,501.20 : 16,370,955.45 = 5,519,078.70 : x
  2. Step 2: Convert to fraction form
    10,915,501.20/16,370,955.45 = 5,519,078.70/x
  3. Step 3: Cross multiply
    10,915,501.20x = 16,370,955.45 × 5,519,078.70
  4. Step 4: Simplify right side
    10,915,501.20x = 90,352,591,522,743.91
  5. Step 5: Solve for x
    x = 90,352,591,522,743.91/10,915,501.20
  6. Step 6: Final answer
    x = 8,277,456.97

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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.