Home / 171,605,942.92-257,064,264.78-79,360,383.88

Finding the Fourth Proportional to 171,605,942.92, 257,064,264.78 and 79,360,383.88

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Solution

The fourth proportional to 171,605,942.92, 257,064,264.78 and 79,360,383.88 is: 118,881,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,605,942.92 : 257,064,264.78 = 79,360,383.88 : x
  2. Step 2: Convert to fraction form
    171,605,942.92/257,064,264.78 = 79,360,383.88/x
  3. Step 3: Cross multiply
    171,605,942.92x = 257,064,264.78 × 79,360,383.88
  4. Step 4: Simplify right side
    171,605,942.92x = 20,400,718,734,770,764
  5. Step 5: Solve for x
    x = 20,400,718,734,770,764/171,605,942.92
  6. Step 6: Final answer
    x = 118,881,190.17

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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.