Home / 20,747,932.02-31,123,392.84-7,968,436.74

Finding the Fourth Proportional to 20,747,932.02, 31,123,392.84 and 7,968,436.74

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Solution

The fourth proportional to 20,747,932.02, 31,123,392.84 and 7,968,436.74 is: 11,953,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747,932.02 : 31,123,392.84 = 7,968,436.74 : x
  2. Step 2: Convert to fraction form
    20,747,932.02/31,123,392.84 = 7,968,436.74/x
  3. Step 3: Cross multiply
    20,747,932.02x = 31,123,392.84 × 7,968,436.74
  4. Step 4: Simplify right side
    20,747,932.02x = 248,004,786,979,708.94
  5. Step 5: Solve for x
    x = 248,004,786,979,708.94/20,747,932.02
  6. Step 6: Final answer
    x = 11,953,229.21

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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.