Home / 72,568,045.14-100,143,907.71-39,972,997.14

Finding the Fourth Proportional to 72,568,045.14, 100,143,907.71 and 39,972,997.14

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Solution

The fourth proportional to 72,568,045.14, 100,143,907.71 and 39,972,997.14 is: 55,162,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568,045.14 : 100,143,907.71 = 39,972,997.14 : x
  2. Step 2: Convert to fraction form
    72,568,045.14/100,143,907.71 = 39,972,997.14/x
  3. Step 3: Cross multiply
    72,568,045.14x = 100,143,907.71 × 39,972,997.14
  4. Step 4: Simplify right side
    72,568,045.14x = 4,003,052,136,480,253.50
  5. Step 5: Solve for x
    x = 4,003,052,136,480,253.50/72,568,045.14
  6. Step 6: Final answer
    x = 55,162,739.04

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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.