Home / 171,253,899.27-256,808,415.42-68,990,479.11

Finding the Fourth Proportional to 171,253,899.27, 256,808,415.42 and 68,990,479.11

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Solution

The fourth proportional to 171,253,899.27, 256,808,415.42 and 68,990,479.11 is: 103,456,538.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,253,899.27 : 256,808,415.42 = 68,990,479.11 : x
  2. Step 2: Convert to fraction form
    171,253,899.27/256,808,415.42 = 68,990,479.11/x
  3. Step 3: Cross multiply
    171,253,899.27x = 256,808,415.42 × 68,990,479.11
  4. Step 4: Simplify right side
    171,253,899.27x = 17,717,335,619,305,710
  5. Step 5: Solve for x
    x = 17,717,335,619,305,710/171,253,899.27
  6. Step 6: Final answer
    x = 103,456,538.48

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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.