Home / 87,144,370-120,259,230.33-47,986,053.46

Finding the Fourth Proportional to 87,144,370, 120,259,230.33 and 47,986,053.46

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Solution

The fourth proportional to 87,144,370, 120,259,230.33 and 47,986,053.46 is: 66,220,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,144,370 : 120,259,230.33 = 47,986,053.46 : x
  2. Step 2: Convert to fraction form
    87,144,370/120,259,230.33 = 47,986,053.46/x
  3. Step 3: Cross multiply
    87,144,370x = 120,259,230.33 × 47,986,053.46
  4. Step 4: Simplify right side
    87,144,370x = 5,770,765,855,673,833
  5. Step 5: Solve for x
    x = 5,770,765,855,673,833/87,144,370
  6. Step 6: Final answer
    x = 66,220,753.63

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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.