Home / 121,418,523.32-167,558,063.56-65,663,942.52

Finding the Fourth Proportional to 121,418,523.32, 167,558,063.56 and 65,663,942.52

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Solution

The fourth proportional to 121,418,523.32, 167,558,063.56 and 65,663,942.52 is: 90,616,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,418,523.32 : 167,558,063.56 = 65,663,942.52 : x
  2. Step 2: Convert to fraction form
    121,418,523.32/167,558,063.56 = 65,663,942.52/x
  3. Step 3: Cross multiply
    121,418,523.32x = 167,558,063.56 × 65,663,942.52
  4. Step 4: Simplify right side
    121,418,523.32x = 11,002,523,054,202,188
  5. Step 5: Solve for x
    x = 11,002,523,054,202,188/121,418,523.32
  6. Step 6: Final answer
    x = 90,616,511.82

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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.