Home / 20,814,981.12-31,177,000.08-8,647,553.52

Finding the Fourth Proportional to 20,814,981.12, 31,177,000.08 and 8,647,553.52

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Solution

The fourth proportional to 20,814,981.12, 31,177,000.08 and 8,647,553.52 is: 12,952,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814,981.12 : 31,177,000.08 = 8,647,553.52 : x
  2. Step 2: Convert to fraction form
    20,814,981.12/31,177,000.08 = 8,647,553.52/x
  3. Step 3: Cross multiply
    20,814,981.12x = 31,177,000.08 × 8,647,553.52
  4. Step 4: Simplify right side
    20,814,981.12x = 269,604,776,784,844.25
  5. Step 5: Solve for x
    x = 269,604,776,784,844.25/20,814,981.12
  6. Step 6: Final answer
    x = 12,952,439.17

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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.