Home / 728,548,177.37-1,005,396,485.00-394,020,697.52

Finding the Fourth Proportional to 728,548,177.37, 1,005,396,485.00 and 394,020,697.52

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Solution

The fourth proportional to 728,548,177.37, 1,005,396,485.00 and 394,020,697.52 is: 543,748,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,548,177.37 : 1,005,396,485.00 = 394,020,697.52 : x
  2. Step 2: Convert to fraction form
    728,548,177.37/1,005,396,485.00 = 394,020,697.52/x
  3. Step 3: Cross multiply
    728,548,177.37x = 1,005,396,485.00 × 394,020,697.52
  4. Step 4: Simplify right side
    728,548,177.37x = 396,147,024,304,399,616
  5. Step 5: Solve for x
    x = 396,147,024,304,399,616/728,548,177.37
  6. Step 6: Final answer
    x = 543,748,562.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.