Home / 405,892,239.10-609,068,676.52-219,143,695.24

Finding the Fourth Proportional to 405,892,239.10, 609,068,676.52 and 219,143,695.24

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Solution

The fourth proportional to 405,892,239.10, 609,068,676.52 and 219,143,695.24 is: 328,839,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,892,239.10 : 609,068,676.52 = 219,143,695.24 : x
  2. Step 2: Convert to fraction form
    405,892,239.10/609,068,676.52 = 219,143,695.24/x
  3. Step 3: Cross multiply
    405,892,239.10x = 609,068,676.52 × 219,143,695.24
  4. Step 4: Simplify right side
    405,892,239.10x = 133,473,560,427,529,024
  5. Step 5: Solve for x
    x = 133,473,560,427,529,024/405,892,239.10
  6. Step 6: Final answer
    x = 328,839,892.88

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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.