Home / 151,945,920-209,685,555.36-82,331,245.44

Finding the Fourth Proportional to 151,945,920, 209,685,555.36 and 82,331,245.44

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Solution

The fourth proportional to 151,945,920, 209,685,555.36 and 82,331,245.44 is: 113,617,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,945,920 : 209,685,555.36 = 82,331,245.44 : x
  2. Step 2: Convert to fraction form
    151,945,920/209,685,555.36 = 82,331,245.44/x
  3. Step 3: Cross multiply
    151,945,920x = 209,685,555.36 × 82,331,245.44
  4. Step 4: Simplify right side
    151,945,920x = 17,263,672,923,566,868
  5. Step 5: Solve for x
    x = 17,263,672,923,566,868/151,945,920
  6. Step 6: Final answer
    x = 113,617,219.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.