Home / 1,292,858,086.80-1,939,559,491.88-419,391,252.84

Finding the Fourth Proportional to 1,292,858,086.80, 1,939,559,491.88 and 419,391,252.84

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Solution

The fourth proportional to 1,292,858,086.80, 1,939,559,491.88 and 419,391,252.84 is: 629,175,230.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,858,086.80 : 1,939,559,491.88 = 419,391,252.84 : x
  2. Step 2: Convert to fraction form
    1,292,858,086.80/1,939,559,491.88 = 419,391,252.84/x
  3. Step 3: Cross multiply
    1,292,858,086.80x = 1,939,559,491.88 × 419,391,252.84
  4. Step 4: Simplify right side
    1,292,858,086.80x = 813,434,285,257,266,944
  5. Step 5: Solve for x
    x = 813,434,285,257,266,944/1,292,858,086.80
  6. Step 6: Final answer
    x = 629,175,230.88

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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.