Home / 79,965,229.86-119,947,845.13-19,380,955.86

Finding the Fourth Proportional to 79,965,229.86, 119,947,845.13 and 19,380,955.86

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Solution

The fourth proportional to 79,965,229.86, 119,947,845.13 and 19,380,955.86 is: 29,071,433.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965,229.86 : 119,947,845.13 = 19,380,955.86 : x
  2. Step 2: Convert to fraction form
    79,965,229.86/119,947,845.13 = 19,380,955.86/x
  3. Step 3: Cross multiply
    79,965,229.86x = 119,947,845.13 × 19,380,955.86
  4. Step 4: Simplify right side
    79,965,229.86x = 2,324,703,891,918,193.50
  5. Step 5: Solve for x
    x = 2,324,703,891,918,193.50/79,965,229.86
  6. Step 6: Final answer
    x = 29,071,433.87

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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.