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Finding the Fourth Proportional to 449,320,652.40, 673,980,978.60 and 367,691,314.80

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Solution

The fourth proportional to 449,320,652.40, 673,980,978.60 and 367,691,314.80 is: 551,536,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,320,652.40 : 673,980,978.60 = 367,691,314.80 : x
  2. Step 2: Convert to fraction form
    449,320,652.40/673,980,978.60 = 367,691,314.80/x
  3. Step 3: Cross multiply
    449,320,652.40x = 673,980,978.60 × 367,691,314.80
  4. Step 4: Simplify right side
    449,320,652.40x = 247,816,952,171,624,672
  5. Step 5: Solve for x
    x = 247,816,952,171,624,672/449,320,652.40
  6. Step 6: Final answer
    x = 551,536,972.20

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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.