Home / 72,568,046.14-100,143,909.09-39,972,998.14

Finding the Fourth Proportional to 72,568,046.14, 100,143,909.09 and 39,972,998.14

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Solution

The fourth proportional to 72,568,046.14, 100,143,909.09 and 39,972,998.14 is: 55,162,740.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568,046.14 : 100,143,909.09 = 39,972,998.14 : x
  2. Step 2: Convert to fraction form
    72,568,046.14/100,143,909.09 = 39,972,998.14/x
  3. Step 3: Cross multiply
    72,568,046.14x = 100,143,909.09 × 39,972,998.14
  4. Step 4: Simplify right side
    72,568,046.14x = 4,003,052,291,786,899.50
  5. Step 5: Solve for x
    x = 4,003,052,291,786,899.50/72,568,046.14
  6. Step 6: Final answer
    x = 55,162,740.42

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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.