Home / 406,150,276.40-609,225,414.60-388,458,321.20

Finding the Fourth Proportional to 406,150,276.40, 609,225,414.60 and 388,458,321.20

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Solution

The fourth proportional to 406,150,276.40, 609,225,414.60 and 388,458,321.20 is: 582,687,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,150,276.40 : 609,225,414.60 = 388,458,321.20 : x
  2. Step 2: Convert to fraction form
    406,150,276.40/609,225,414.60 = 388,458,321.20/x
  3. Step 3: Cross multiply
    406,150,276.40x = 609,225,414.60 × 388,458,321.20
  4. Step 4: Simplify right side
    406,150,276.40x = 236,658,681,787,889,984
  5. Step 5: Solve for x
    x = 236,658,681,787,889,984/406,150,276.40
  6. Step 6: Final answer
    x = 582,687,481.80

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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.