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Finding the Fourth Proportional to 426,354,375.60, 638,681,257.80 and 244,388,977.20

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Solution

The fourth proportional to 426,354,375.60, 638,681,257.80 and 244,388,977.20 is: 366,096,065.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,354,375.60 : 638,681,257.80 = 244,388,977.20 : x
  2. Step 2: Convert to fraction form
    426,354,375.60/638,681,257.80 = 244,388,977.20/x
  3. Step 3: Cross multiply
    426,354,375.60x = 638,681,257.80 × 244,388,977.20
  4. Step 4: Simplify right side
    426,354,375.60x = 156,086,659,350,551,488
  5. Step 5: Solve for x
    x = 156,086,659,350,551,488/426,354,375.60
  6. Step 6: Final answer
    x = 366,096,065.35

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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.