Home / 419,905,511.60-629,858,267.40-113,228,625.20

Finding the Fourth Proportional to 419,905,511.60, 629,858,267.40 and 113,228,625.20

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Solution

The fourth proportional to 419,905,511.60, 629,858,267.40 and 113,228,625.20 is: 169,842,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,511.60 : 629,858,267.40 = 113,228,625.20 : x
  2. Step 2: Convert to fraction form
    419,905,511.60/629,858,267.40 = 113,228,625.20/x
  3. Step 3: Cross multiply
    419,905,511.60x = 629,858,267.40 × 113,228,625.20
  4. Step 4: Simplify right side
    419,905,511.60x = 71,317,985,688,555,976
  5. Step 5: Solve for x
    x = 71,317,985,688,555,976/419,905,511.60
  6. Step 6: Final answer
    x = 169,842,937.80

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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.