Home / 8,402,728.20-12,576,098.70-7,394,958.60

Finding the Fourth Proportional to 8,402,728.20, 12,576,098.70 and 7,394,958.60

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Solution

The fourth proportional to 8,402,728.20, 12,576,098.70 and 7,394,958.60 is: 11,067,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402,728.20 : 12,576,098.70 = 7,394,958.60 : x
  2. Step 2: Convert to fraction form
    8,402,728.20/12,576,098.70 = 7,394,958.60/x
  3. Step 3: Cross multiply
    8,402,728.20x = 12,576,098.70 × 7,394,958.60
  4. Step 4: Simplify right side
    8,402,728.20x = 92,999,729,236,013.81
  5. Step 5: Solve for x
    x = 92,999,729,236,013.81/8,402,728.20
  6. Step 6: Final answer
    x = 11,067,801.67

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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.