Home / 20,764,408.20-31,146,320.70-9,404,838.60

Finding the Fourth Proportional to 20,764,408.20, 31,146,320.70 and 9,404,838.60

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Solution

The fourth proportional to 20,764,408.20, 31,146,320.70 and 9,404,838.60 is: 14,107,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,764,408.20 : 31,146,320.70 = 9,404,838.60 : x
  2. Step 2: Convert to fraction form
    20,764,408.20/31,146,320.70 = 9,404,838.60/x
  3. Step 3: Cross multiply
    20,764,408.20x = 31,146,320.70 × 9,404,838.60
  4. Step 4: Simplify right side
    20,764,408.20x = 292,926,119,167,339
  5. Step 5: Solve for x
    x = 292,926,119,167,339/20,764,408.20
  6. Step 6: Final answer
    x = 14,107,125.83

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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.