Home / 343,250,310.80-515,074,531.80-127,861,331.60

Finding the Fourth Proportional to 343,250,310.80, 515,074,531.80 and 127,861,331.60

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Solution

The fourth proportional to 343,250,310.80, 515,074,531.80 and 127,861,331.60 is: 191,866,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,250,310.80 : 515,074,531.80 = 127,861,331.60 : x
  2. Step 2: Convert to fraction form
    343,250,310.80/515,074,531.80 = 127,861,331.60/x
  3. Step 3: Cross multiply
    343,250,310.80x = 515,074,531.80 × 127,861,331.60
  4. Step 4: Simplify right side
    343,250,310.80x = 65,858,115,509,194,544
  5. Step 5: Solve for x
    x = 65,858,115,509,194,544/343,250,310.80
  6. Step 6: Final answer
    x = 191,866,149.68

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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.