Home / 21,863,540.80-32,795,311.20-7,680,116.80

Finding the Fourth Proportional to 21,863,540.80, 32,795,311.20 and 7,680,116.80

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Solution

The fourth proportional to 21,863,540.80, 32,795,311.20 and 7,680,116.80 is: 11,520,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,540.80 : 32,795,311.20 = 7,680,116.80 : x
  2. Step 2: Convert to fraction form
    21,863,540.80/32,795,311.20 = 7,680,116.80/x
  3. Step 3: Cross multiply
    21,863,540.80x = 32,795,311.20 × 7,680,116.80
  4. Step 4: Simplify right side
    21,863,540.80x = 251,871,820,508,348.16
  5. Step 5: Solve for x
    x = 251,871,820,508,348.16/21,863,540.80
  6. Step 6: Final answer
    x = 11,520,175.20

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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.