Home / 407,998,551.25-612,117,899.33-131,644,581.14

Finding the Fourth Proportional to 407,998,551.25, 612,117,899.33 and 131,644,581.14

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Solution

The fourth proportional to 407,998,551.25, 612,117,899.33 and 131,644,581.14 is: 197,505,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,998,551.25 : 612,117,899.33 = 131,644,581.14 : x
  2. Step 2: Convert to fraction form
    407,998,551.25/612,117,899.33 = 131,644,581.14/x
  3. Step 3: Cross multiply
    407,998,551.25x = 612,117,899.33 × 131,644,581.14
  4. Step 4: Simplify right side
    407,998,551.25x = 80,582,004,465,373,568
  5. Step 5: Solve for x
    x = 80,582,004,465,373,568/407,998,551.25
  6. Step 6: Final answer
    x = 197,505,614.22

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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.