Home / 21,002,855.40-31,504,283.10-14,200,410.60

Finding the Fourth Proportional to 21,002,855.40, 31,504,283.10 and 14,200,410.60

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Solution

The fourth proportional to 21,002,855.40, 31,504,283.10 and 14,200,410.60 is: 21,300,615.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,002,855.40 : 31,504,283.10 = 14,200,410.60 : x
  2. Step 2: Convert to fraction form
    21,002,855.40/31,504,283.10 = 14,200,410.60/x
  3. Step 3: Cross multiply
    21,002,855.40x = 31,504,283.10 × 14,200,410.60
  4. Step 4: Simplify right side
    21,002,855.40x = 447,373,755,678,640.88
  5. Step 5: Solve for x
    x = 447,373,755,678,640.88/21,002,855.40
  6. Step 6: Final answer
    x = 21,300,615.90

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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.