Home / 263,111,171.28-394,530,769.80-115,498,316.40

Finding the Fourth Proportional to 263,111,171.28, 394,530,769.80 and 115,498,316.40

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Solution

The fourth proportional to 263,111,171.28, 394,530,769.80 and 115,498,316.40 is: 173,187,780.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,111,171.28 : 394,530,769.80 = 115,498,316.40 : x
  2. Step 2: Convert to fraction form
    263,111,171.28/394,530,769.80 = 115,498,316.40/x
  3. Step 3: Cross multiply
    263,111,171.28x = 394,530,769.80 × 115,498,316.40
  4. Step 4: Simplify right side
    263,111,171.28x = 45,567,639,679,895,968
  5. Step 5: Solve for x
    x = 45,567,639,679,895,968/263,111,171.28
  6. Step 6: Final answer
    x = 173,187,780.12

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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.