Home / 20,757,702.47-31,139,525.25-6,381,977.31

Finding the Fourth Proportional to 20,757,702.47, 31,139,525.25 and 6,381,977.31

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Solution

The fourth proportional to 20,757,702.47, 31,139,525.25 and 6,381,977.31 is: 9,573,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,702.47 : 31,139,525.25 = 6,381,977.31 : x
  2. Step 2: Convert to fraction form
    20,757,702.47/31,139,525.25 = 6,381,977.31/x
  3. Step 3: Cross multiply
    20,757,702.47x = 31,139,525.25 × 6,381,977.31
  4. Step 4: Simplify right side
    20,757,702.47x = 198,731,743,589,672.06
  5. Step 5: Solve for x
    x = 198,731,743,589,672.06/20,757,702.47
  6. Step 6: Final answer
    x = 9,573,879.57

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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.