Home / 447,888,580.14-618,351,375.24-398,191,687.20

Finding the Fourth Proportional to 447,888,580.14, 618,351,375.24 and 398,191,687.20

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Solution

The fourth proportional to 447,888,580.14, 618,351,375.24 and 398,191,687.20 is: 549,740,244.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,888,580.14 : 618,351,375.24 = 398,191,687.20 : x
  2. Step 2: Convert to fraction form
    447,888,580.14/618,351,375.24 = 398,191,687.20/x
  3. Step 3: Cross multiply
    447,888,580.14x = 618,351,375.24 × 398,191,687.20
  4. Step 4: Simplify right side
    447,888,580.14x = 246,222,377,389,255,904
  5. Step 5: Solve for x
    x = 246,222,377,389,255,904/447,888,580.14
  6. Step 6: Final answer
    x = 549,740,244.13

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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.