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Finding the Fourth Proportional to 43,808,469.80, 65,712,704.70 and 18,240,981.80

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Solution

The fourth proportional to 43,808,469.80, 65,712,704.70 and 18,240,981.80 is: 27,361,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,808,469.80 : 65,712,704.70 = 18,240,981.80 : x
  2. Step 2: Convert to fraction form
    43,808,469.80/65,712,704.70 = 18,240,981.80/x
  3. Step 3: Cross multiply
    43,808,469.80x = 65,712,704.70 × 18,240,981.80
  4. Step 4: Simplify right side
    43,808,469.80x = 1,198,664,250,461,474.50
  5. Step 5: Solve for x
    x = 1,198,664,250,461,474.50/43,808,469.80
  6. Step 6: Final answer
    x = 27,361,472.70

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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.