Home / 263,155,999.80-394,733,999.70-71,679,775.80

Finding the Fourth Proportional to 263,155,999.80, 394,733,999.70 and 71,679,775.80

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Solution

The fourth proportional to 263,155,999.80, 394,733,999.70 and 71,679,775.80 is: 107,519,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,155,999.80 : 394,733,999.70 = 71,679,775.80 : x
  2. Step 2: Convert to fraction form
    263,155,999.80/394,733,999.70 = 71,679,775.80/x
  3. Step 3: Cross multiply
    263,155,999.80x = 394,733,999.70 × 71,679,775.80
  4. Step 4: Simplify right side
    263,155,999.80x = 28,294,444,599,133,264
  5. Step 5: Solve for x
    x = 28,294,444,599,133,264/263,155,999.80
  6. Step 6: Final answer
    x = 107,519,663.70

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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.