Home / 419,905,438.80-629,858,158.20-410,947,486.80

Finding the Fourth Proportional to 419,905,438.80, 629,858,158.20 and 410,947,486.80

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Solution

The fourth proportional to 419,905,438.80, 629,858,158.20 and 410,947,486.80 is: 616,421,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,438.80 : 629,858,158.20 = 410,947,486.80 : x
  2. Step 2: Convert to fraction form
    419,905,438.80/629,858,158.20 = 410,947,486.80/x
  3. Step 3: Cross multiply
    419,905,438.80x = 629,858,158.20 × 410,947,486.80
  4. Step 4: Simplify right side
    419,905,438.80x = 258,838,627,152,766,848
  5. Step 5: Solve for x
    x = 258,838,627,152,766,848/419,905,438.80
  6. Step 6: Final answer
    x = 616,421,230.20

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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.