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Finding the Fourth Proportional to 419,909,781.60, 629,864,672.40 and 377,583,458.40

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Solution

The fourth proportional to 419,909,781.60, 629,864,672.40 and 377,583,458.40 is: 566,375,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,909,781.60 : 629,864,672.40 = 377,583,458.40 : x
  2. Step 2: Convert to fraction form
    419,909,781.60/629,864,672.40 = 377,583,458.40/x
  3. Step 3: Cross multiply
    419,909,781.60x = 629,864,672.40 × 377,583,458.40
  4. Step 4: Simplify right side
    419,909,781.60x = 237,826,481,328,775,008
  5. Step 5: Solve for x
    x = 237,826,481,328,775,008/419,909,781.60
  6. Step 6: Final answer
    x = 566,375,187.60

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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.