Home / 54,665,655.20-82,029,975.60-20,611,440.80

Finding the Fourth Proportional to 54,665,655.20, 82,029,975.60 and 20,611,440.80

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Solution

The fourth proportional to 54,665,655.20, 82,029,975.60 and 20,611,440.80 is: 30,929,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,665,655.20 : 82,029,975.60 = 20,611,440.80 : x
  2. Step 2: Convert to fraction form
    54,665,655.20/82,029,975.60 = 20,611,440.80/x
  3. Step 3: Cross multiply
    54,665,655.20x = 82,029,975.60 × 20,611,440.80
  4. Step 4: Simplify right side
    54,665,655.20x = 1,690,755,985,904,844.50
  5. Step 5: Solve for x
    x = 1,690,755,985,904,844.50/54,665,655.20
  6. Step 6: Final answer
    x = 30,929,035.42

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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.