Home / 20,757,704.98-31,139,529-6,381,979.81

Finding the Fourth Proportional to 20,757,704.98, 31,139,529 and 6,381,979.81

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Solution

The fourth proportional to 20,757,704.98, 31,139,529 and 6,381,979.81 is: 9,573,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,704.98 : 31,139,529 = 6,381,979.81 : x
  2. Step 2: Convert to fraction form
    20,757,704.98/31,139,529 = 6,381,979.81/x
  3. Step 3: Cross multiply
    20,757,704.98x = 31,139,529 × 6,381,979.81
  4. Step 4: Simplify right side
    20,757,704.98x = 198,731,845,370,909.47
  5. Step 5: Solve for x
    x = 198,731,845,370,909.47/20,757,704.98
  6. Step 6: Final answer
    x = 9,573,883.32

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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.