Home / 278,130,982.80-417,194,400.60-84,042,022.80

Finding the Fourth Proportional to 278,130,982.80, 417,194,400.60 and 84,042,022.80

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Solution

The fourth proportional to 278,130,982.80, 417,194,400.60 and 84,042,022.80 is: 126,062,407.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,130,982.80 : 417,194,400.60 = 84,042,022.80 : x
  2. Step 2: Convert to fraction form
    278,130,982.80/417,194,400.60 = 84,042,022.80/x
  3. Step 3: Cross multiply
    278,130,982.80x = 417,194,400.60 × 84,042,022.80
  4. Step 4: Simplify right side
    278,130,982.80x = 35,061,861,327,257,536
  5. Step 5: Solve for x
    x = 35,061,861,327,257,536/278,130,982.80
  6. Step 6: Final answer
    x = 126,062,407.63

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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.