Home / 20,912,939.57-31,369,433.85-6,536,082.71

Finding the Fourth Proportional to 20,912,939.57, 31,369,433.85 and 6,536,082.71

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Solution

The fourth proportional to 20,912,939.57, 31,369,433.85 and 6,536,082.71 is: 9,804,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,939.57 : 31,369,433.85 = 6,536,082.71 : x
  2. Step 2: Convert to fraction form
    20,912,939.57/31,369,433.85 = 6,536,082.71/x
  3. Step 3: Cross multiply
    20,912,939.57x = 31,369,433.85 × 6,536,082.71
  4. Step 4: Simplify right side
    20,912,939.57x = 205,033,214,209,473.75
  5. Step 5: Solve for x
    x = 205,033,214,209,473.75/20,912,939.57
  6. Step 6: Final answer
    x = 9,804,131.72

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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.