Home / 447,888,578.14-618,351,372.48-398,191,685.20

Finding the Fourth Proportional to 447,888,578.14, 618,351,372.48 and 398,191,685.20

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Solution

The fourth proportional to 447,888,578.14, 618,351,372.48 and 398,191,685.20 is: 549,740,241.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,888,578.14 : 618,351,372.48 = 398,191,685.20 : x
  2. Step 2: Convert to fraction form
    447,888,578.14/618,351,372.48 = 398,191,685.20/x
  3. Step 3: Cross multiply
    447,888,578.14x = 618,351,372.48 × 398,191,685.20
  4. Step 4: Simplify right side
    447,888,578.14x = 246,222,375,053,544,096
  5. Step 5: Solve for x
    x = 246,222,375,053,544,096/447,888,578.14
  6. Step 6: Final answer
    x = 549,740,241.37

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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.