Home / 31,611,086.12-47,382,612.96-20,677,158.56

Finding the Fourth Proportional to 31,611,086.12, 47,382,612.96 and 20,677,158.56

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Solution

The fourth proportional to 31,611,086.12, 47,382,612.96 and 20,677,158.56 is: 30,993,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611,086.12 : 47,382,612.96 = 20,677,158.56 : x
  2. Step 2: Convert to fraction form
    31,611,086.12/47,382,612.96 = 20,677,158.56/x
  3. Step 3: Cross multiply
    31,611,086.12x = 47,382,612.96 × 20,677,158.56
  4. Step 4: Simplify right side
    31,611,086.12x = 979,737,801,161,030.88
  5. Step 5: Solve for x
    x = 979,737,801,161,030.88/31,611,086.12
  6. Step 6: Final answer
    x = 30,993,487.46

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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.