Home / 140,763,809-210,870,832.22-66,882,449.28

Finding the Fourth Proportional to 140,763,809, 210,870,832.22 and 66,882,449.28

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Solution

The fourth proportional to 140,763,809, 210,870,832.22 and 66,882,449.28 is: 100,193,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763,809 : 210,870,832.22 = 66,882,449.28 : x
  2. Step 2: Convert to fraction form
    140,763,809/210,870,832.22 = 66,882,449.28/x
  3. Step 3: Cross multiply
    140,763,809x = 210,870,832.22 × 66,882,449.28
  4. Step 4: Simplify right side
    140,763,809x = 14,103,557,740,585,540
  5. Step 5: Solve for x
    x = 14,103,557,740,585,540/140,763,809
  6. Step 6: Final answer
    x = 100,193,066.96

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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.