Home / 119,668,911.97-179,135,204.82-78,080,237.61

Finding the Fourth Proportional to 119,668,911.97, 179,135,204.82 and 78,080,237.61

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Solution

The fourth proportional to 119,668,911.97, 179,135,204.82 and 78,080,237.61 is: 116,880,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,668,911.97 : 179,135,204.82 = 78,080,237.61 : x
  2. Step 2: Convert to fraction form
    119,668,911.97/179,135,204.82 = 78,080,237.61/x
  3. Step 3: Cross multiply
    119,668,911.97x = 179,135,204.82 × 78,080,237.61
  4. Step 4: Simplify right side
    119,668,911.97x = 13,986,919,355,765,942
  5. Step 5: Solve for x
    x = 13,986,919,355,765,942/119,668,911.97
  6. Step 6: Final answer
    x = 116,880,141.43

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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.