Home / 278,131,028.80-417,194,469.60-84,042,068.80

Finding the Fourth Proportional to 278,131,028.80, 417,194,469.60 and 84,042,068.80

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Solution

The fourth proportional to 278,131,028.80, 417,194,469.60 and 84,042,068.80 is: 126,062,476.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,131,028.80 : 417,194,469.60 = 84,042,068.80 : x
  2. Step 2: Convert to fraction form
    278,131,028.80/417,194,469.60 = 84,042,068.80/x
  3. Step 3: Cross multiply
    278,131,028.80x = 417,194,469.60 × 84,042,068.80
  4. Step 4: Simplify right side
    278,131,028.80x = 35,061,886,317,102,708
  5. Step 5: Solve for x
    x = 35,061,886,317,102,708/278,131,028.80
  6. Step 6: Final answer
    x = 126,062,476.63

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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.