Home / 405,892,238.10-609,068,675.03-219,143,694.24

Finding the Fourth Proportional to 405,892,238.10, 609,068,675.03 and 219,143,694.24

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Solution

The fourth proportional to 405,892,238.10, 609,068,675.03 and 219,143,694.24 is: 328,839,891.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,892,238.10 : 609,068,675.03 = 219,143,694.24 : x
  2. Step 2: Convert to fraction form
    405,892,238.10/609,068,675.03 = 219,143,694.24/x
  3. Step 3: Cross multiply
    405,892,238.10x = 609,068,675.03 × 219,143,694.24
  4. Step 4: Simplify right side
    405,892,238.10x = 133,473,559,491,936,240
  5. Step 5: Solve for x
    x = 133,473,559,491,936,240/405,892,238.10
  6. Step 6: Final answer
    x = 328,839,891.39

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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.