Home / 20,814,981.62-31,177,000.83-8,647,554.02

Finding the Fourth Proportional to 20,814,981.62, 31,177,000.83 and 8,647,554.02

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Solution

The fourth proportional to 20,814,981.62, 31,177,000.83 and 8,647,554.02 is: 12,952,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814,981.62 : 31,177,000.83 = 8,647,554.02 : x
  2. Step 2: Convert to fraction form
    20,814,981.62/31,177,000.83 = 8,647,554.02/x
  3. Step 3: Cross multiply
    20,814,981.62x = 31,177,000.83 × 8,647,554.02
  4. Step 4: Simplify right side
    20,814,981.62x = 269,604,798,859,009.81
  5. Step 5: Solve for x
    x = 269,604,798,859,009.81/20,814,981.62
  6. Step 6: Final answer
    x = 12,952,439.92

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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.