Home / 21,863,936.80-32,795,905.20-7,680,512.80

Finding the Fourth Proportional to 21,863,936.80, 32,795,905.20 and 7,680,512.80

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Solution

The fourth proportional to 21,863,936.80, 32,795,905.20 and 7,680,512.80 is: 11,520,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,863,936.80 : 32,795,905.20 = 7,680,512.80 : x
  2. Step 2: Convert to fraction form
    21,863,936.80/32,795,905.20 = 7,680,512.80/x
  3. Step 3: Cross multiply
    21,863,936.80x = 32,795,905.20 × 7,680,512.80
  4. Step 4: Simplify right side
    21,863,936.80x = 251,889,369,676,186.56
  5. Step 5: Solve for x
    x = 251,889,369,676,186.56/21,863,936.80
  6. Step 6: Final answer
    x = 11,520,769.20

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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.