Home / 21,004,616.80-31,532,513.10-13,328,246.80

Finding the Fourth Proportional to 21,004,616.80, 31,532,513.10 and 13,328,246.80

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Solution

The fourth proportional to 21,004,616.80, 31,532,513.10 and 13,328,246.80 is: 20,008,606.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,616.80 : 31,532,513.10 = 13,328,246.80 : x
  2. Step 2: Convert to fraction form
    21,004,616.80/31,532,513.10 = 13,328,246.80/x
  3. Step 3: Cross multiply
    21,004,616.80x = 31,532,513.10 × 13,328,246.80
  4. Step 4: Simplify right side
    21,004,616.80x = 420,273,116,821,033.12
  5. Step 5: Solve for x
    x = 420,273,116,821,033.12/21,004,616.80
  6. Step 6: Final answer
    x = 20,008,606.72

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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.