Home / 339,555,616.80-509,333,425.20-121,310,512.80

Finding the Fourth Proportional to 339,555,616.80, 509,333,425.20 and 121,310,512.80

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Solution

The fourth proportional to 339,555,616.80, 509,333,425.20 and 121,310,512.80 is: 181,965,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,555,616.80 : 509,333,425.20 = 121,310,512.80 : x
  2. Step 2: Convert to fraction form
    339,555,616.80/509,333,425.20 = 121,310,512.80/x
  3. Step 3: Cross multiply
    339,555,616.80x = 509,333,425.20 × 121,310,512.80
  4. Step 4: Simplify right side
    339,555,616.80x = 61,787,498,997,192,440
  5. Step 5: Solve for x
    x = 61,787,498,997,192,440/339,555,616.80
  6. Step 6: Final answer
    x = 181,965,769.20

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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.