Home / 20,757,711.53-31,139,538.84-6,381,986.37

Finding the Fourth Proportional to 20,757,711.53, 31,139,538.84 and 6,381,986.37

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Solution

The fourth proportional to 20,757,711.53, 31,139,538.84 and 6,381,986.37 is: 9,573,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,711.53 : 31,139,538.84 = 6,381,986.37 : x
  2. Step 2: Convert to fraction form
    20,757,711.53/31,139,538.84 = 6,381,986.37/x
  3. Step 3: Cross multiply
    20,757,711.53x = 31,139,538.84 × 6,381,986.37
  4. Step 4: Simplify right side
    20,757,711.53x = 198,732,112,444,965.62
  5. Step 5: Solve for x
    x = 198,732,112,444,965.62/20,757,711.53
  6. Step 6: Final answer
    x = 9,573,893.16

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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.