Home / 378,012,160.29-521,654,917.82-219,274,387.25

Finding the Fourth Proportional to 378,012,160.29, 521,654,917.82 and 219,274,387.25

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Solution

The fourth proportional to 378,012,160.29, 521,654,917.82 and 219,274,387.25 is: 302,597,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,012,160.29 : 521,654,917.82 = 219,274,387.25 : x
  2. Step 2: Convert to fraction form
    378,012,160.29/521,654,917.82 = 219,274,387.25/x
  3. Step 3: Cross multiply
    378,012,160.29x = 521,654,917.82 × 219,274,387.25
  4. Step 4: Simplify right side
    378,012,160.29x = 114,385,562,457,224,960
  5. Step 5: Solve for x
    x = 114,385,562,457,224,960/378,012,160.29
  6. Step 6: Final answer
    x = 302,597,573.50

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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.