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Finding the Fourth Proportional to 408,093,308.60, 612,304,007.70 and 165,775,177.40

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Solution

The fourth proportional to 408,093,308.60, 612,304,007.70 and 165,775,177.40 is: 248,729,404.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,093,308.60 : 612,304,007.70 = 165,775,177.40 : x
  2. Step 2: Convert to fraction form
    408,093,308.60/612,304,007.70 = 165,775,177.40/x
  3. Step 3: Cross multiply
    408,093,308.60x = 612,304,007.70 × 165,775,177.40
  4. Step 4: Simplify right side
    408,093,308.60x = 101,504,805,499,198,480
  5. Step 5: Solve for x
    x = 101,504,805,499,198,480/408,093,308.60
  6. Step 6: Final answer
    x = 248,729,404.18

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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.