Home / 419,905,257.10-629,857,885.65-189,881,845.90

Finding the Fourth Proportional to 419,905,257.10, 629,857,885.65 and 189,881,845.90

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Solution

The fourth proportional to 419,905,257.10, 629,857,885.65 and 189,881,845.90 is: 284,822,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,905,257.10 : 629,857,885.65 = 189,881,845.90 : x
  2. Step 2: Convert to fraction form
    419,905,257.10/629,857,885.65 = 189,881,845.90/x
  3. Step 3: Cross multiply
    419,905,257.10x = 629,857,885.65 × 189,881,845.90
  4. Step 4: Simplify right side
    419,905,257.10x = 119,598,577,981,893,120
  5. Step 5: Solve for x
    x = 119,598,577,981,893,120/419,905,257.10
  6. Step 6: Final answer
    x = 284,822,768.85

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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.