Home / 419,985,003.40-629,977,505.10-177,647,907.40

Finding the Fourth Proportional to 419,985,003.40, 629,977,505.10 and 177,647,907.40

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Solution

The fourth proportional to 419,985,003.40, 629,977,505.10 and 177,647,907.40 is: 266,471,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,985,003.40 : 629,977,505.10 = 177,647,907.40 : x
  2. Step 2: Convert to fraction form
    419,985,003.40/629,977,505.10 = 177,647,907.40/x
  3. Step 3: Cross multiply
    419,985,003.40x = 629,977,505.10 × 177,647,907.40
  4. Step 4: Simplify right side
    419,985,003.40x = 111,914,185,490,087,840
  5. Step 5: Solve for x
    x = 111,914,185,490,087,840/419,985,003.40
  6. Step 6: Final answer
    x = 266,471,861.10

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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.