Home / 187,315,481.90-280,876,409.82-82,227,813.68

Finding the Fourth Proportional to 187,315,481.90, 280,876,409.82 and 82,227,813.68

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Solution

The fourth proportional to 187,315,481.90, 280,876,409.82 and 82,227,813.68 is: 123,299,221.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,315,481.90 : 280,876,409.82 = 82,227,813.68 : x
  2. Step 2: Convert to fraction form
    187,315,481.90/280,876,409.82 = 82,227,813.68/x
  3. Step 3: Cross multiply
    187,315,481.90x = 280,876,409.82 × 82,227,813.68
  4. Step 4: Simplify right side
    187,315,481.90x = 23,095,853,092,381,900
  5. Step 5: Solve for x
    x = 23,095,853,092,381,900/187,315,481.90
  6. Step 6: Final answer
    x = 123,299,221.50

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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.