Home / 320,668,631.80-481,002,947.70-274,752,129.40

Finding the Fourth Proportional to 320,668,631.80, 481,002,947.70 and 274,752,129.40

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Solution

The fourth proportional to 320,668,631.80, 481,002,947.70 and 274,752,129.40 is: 412,128,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,668,631.80 : 481,002,947.70 = 274,752,129.40 : x
  2. Step 2: Convert to fraction form
    320,668,631.80/481,002,947.70 = 274,752,129.40/x
  3. Step 3: Cross multiply
    320,668,631.80x = 481,002,947.70 × 274,752,129.40
  4. Step 4: Simplify right side
    320,668,631.80x = 132,156,584,128,251,824
  5. Step 5: Solve for x
    x = 132,156,584,128,251,824/320,668,631.80
  6. Step 6: Final answer
    x = 412,128,194.10

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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.