Home / 20,757,700.97-31,139,523-6,381,975.81

Finding the Fourth Proportional to 20,757,700.97, 31,139,523 and 6,381,975.81

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Solution

The fourth proportional to 20,757,700.97, 31,139,523 and 6,381,975.81 is: 9,573,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,700.97 : 31,139,523 = 6,381,975.81 : x
  2. Step 2: Convert to fraction form
    20,757,700.97/31,139,523 = 6,381,975.81/x
  3. Step 3: Cross multiply
    20,757,700.97x = 31,139,523 × 6,381,975.81
  4. Step 4: Simplify right side
    20,757,700.97x = 198,731,682,520,938.62
  5. Step 5: Solve for x
    x = 198,731,682,520,938.62/20,757,700.97
  6. Step 6: Final answer
    x = 9,573,877.32

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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.