Home / 119,668,917.69-179,135,213.20-78,080,243.26

Finding the Fourth Proportional to 119,668,917.69, 179,135,213.20 and 78,080,243.26

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Solution

The fourth proportional to 119,668,917.69, 179,135,213.20 and 78,080,243.26 is: 116,880,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,668,917.69 : 179,135,213.20 = 78,080,243.26 : x
  2. Step 2: Convert to fraction form
    119,668,917.69/179,135,213.20 = 78,080,243.26/x
  3. Step 3: Cross multiply
    119,668,917.69x = 179,135,213.20 × 78,080,243.26
  4. Step 4: Simplify right side
    119,668,917.69x = 13,986,921,023,087,964
  5. Step 5: Solve for x
    x = 13,986,921,023,087,964/119,668,917.69
  6. Step 6: Final answer
    x = 116,880,149.78

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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.