Home / 395,606,369.25-545,936,789.57-219,421,343.07

Finding the Fourth Proportional to 395,606,369.25, 545,936,789.57 and 219,421,343.07

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Solution

The fourth proportional to 395,606,369.25, 545,936,789.57 and 219,421,343.07 is: 302,801,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,606,369.25 : 545,936,789.57 = 219,421,343.07 : x
  2. Step 2: Convert to fraction form
    395,606,369.25/545,936,789.57 = 219,421,343.07/x
  3. Step 3: Cross multiply
    395,606,369.25x = 545,936,789.57 × 219,421,343.07
  4. Step 4: Simplify right side
    395,606,369.25x = 119,790,183,597,676,272
  5. Step 5: Solve for x
    x = 119,790,183,597,676,272/395,606,369.25
  6. Step 6: Final answer
    x = 302,801,453.44

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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.