Home / 384,588,912.68-530,758,738.82-217,267,141.48

Finding the Fourth Proportional to 384,588,912.68, 530,758,738.82 and 217,267,141.48

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Solution

The fourth proportional to 384,588,912.68, 530,758,738.82 and 217,267,141.48 is: 299,843,365.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,588,912.68 : 530,758,738.82 = 217,267,141.48 : x
  2. Step 2: Convert to fraction form
    384,588,912.68/530,758,738.82 = 217,267,141.48/x
  3. Step 3: Cross multiply
    384,588,912.68x = 530,758,738.82 × 217,267,141.48
  4. Step 4: Simplify right side
    384,588,912.68x = 115,316,433,998,951,296
  5. Step 5: Solve for x
    x = 115,316,433,998,951,296/384,588,912.68
  6. Step 6: Final answer
    x = 299,843,365.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.