Home / 279,578,715.10-419,494,043.85-133,956,007.90

Finding the Fourth Proportional to 279,578,715.10, 419,494,043.85 and 133,956,007.90

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Solution

The fourth proportional to 279,578,715.10, 419,494,043.85 and 133,956,007.90 is: 200,994,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,578,715.10 : 419,494,043.85 = 133,956,007.90 : x
  2. Step 2: Convert to fraction form
    279,578,715.10/419,494,043.85 = 133,956,007.90/x
  3. Step 3: Cross multiply
    279,578,715.10x = 419,494,043.85 × 133,956,007.90
  4. Step 4: Simplify right side
    279,578,715.10x = 56,193,747,451,973,552
  5. Step 5: Solve for x
    x = 56,193,747,451,973,552/279,578,715.10
  6. Step 6: Final answer
    x = 200,994,369.09

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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.