Home / 419,905,983.60-629,858,975.40-147,276,750.60

Finding the Fourth Proportional to 419,905,983.60, 629,858,975.40 and 147,276,750.60

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Solution

The fourth proportional to 419,905,983.60, 629,858,975.40 and 147,276,750.60 is: 220,915,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,983.60 : 629,858,975.40 = 147,276,750.60 : x
  2. Step 2: Convert to fraction form
    419,905,983.60/629,858,975.40 = 147,276,750.60/x
  3. Step 3: Cross multiply
    419,905,983.60x = 629,858,975.40 × 147,276,750.60
  4. Step 4: Simplify right side
    419,905,983.60x = 92,763,583,233,157,328
  5. Step 5: Solve for x
    x = 92,763,583,233,157,328/419,905,983.60
  6. Step 6: Final answer
    x = 220,915,125.90

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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.