Home / 408,784,877.20-612,169,546.20-271,728,211.60

Finding the Fourth Proportional to 408,784,877.20, 612,169,546.20 and 271,728,211.60

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Solution

The fourth proportional to 408,784,877.20, 612,169,546.20 and 271,728,211.60 is: 406,922,431.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,784,877.20 : 612,169,546.20 = 271,728,211.60 : x
  2. Step 2: Convert to fraction form
    408,784,877.20/612,169,546.20 = 271,728,211.60/x
  3. Step 3: Cross multiply
    408,784,877.20x = 612,169,546.20 × 271,728,211.60
  4. Step 4: Simplify right side
    408,784,877.20x = 166,343,735,984,909,600
  5. Step 5: Solve for x
    x = 166,343,735,984,909,600/408,784,877.20
  6. Step 6: Final answer
    x = 406,922,431.00

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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.