Home / 221,666,920.92-305,887,229.42-122,541,756.53

Finding the Fourth Proportional to 221,666,920.92, 305,887,229.42 and 122,541,756.53

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Solution

The fourth proportional to 221,666,920.92, 305,887,229.42 and 122,541,756.53 is: 169,100,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,666,920.92 : 305,887,229.42 = 122,541,756.53 : x
  2. Step 2: Convert to fraction form
    221,666,920.92/305,887,229.42 = 122,541,756.53/x
  3. Step 3: Cross multiply
    221,666,920.92x = 305,887,229.42 × 122,541,756.53
  4. Step 4: Simplify right side
    221,666,920.92x = 37,483,958,391,079,752
  5. Step 5: Solve for x
    x = 37,483,958,391,079,752/221,666,920.92
  6. Step 6: Final answer
    x = 169,100,370.21

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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.