Home / 7,172,103.11-9,897,213.57-3,908,847.60

Finding the Fourth Proportional to 7,172,103.11, 9,897,213.57 and 3,908,847.60

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Solution

The fourth proportional to 7,172,103.11, 9,897,213.57 and 3,908,847.60 is: 5,394,052.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,103.11 : 9,897,213.57 = 3,908,847.60 : x
  2. Step 2: Convert to fraction form
    7,172,103.11/9,897,213.57 = 3,908,847.60/x
  3. Step 3: Cross multiply
    7,172,103.11x = 9,897,213.57 × 3,908,847.60
  4. Step 4: Simplify right side
    7,172,103.11x = 38,686,699,509,781.94
  5. Step 5: Solve for x
    x = 38,686,699,509,781.94/7,172,103.11
  6. Step 6: Final answer
    x = 5,394,052.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.