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Finding the Fourth Proportional to 8,338,277.70, 12,507,416.55 and 2,946,885.30

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Solution

The fourth proportional to 8,338,277.70, 12,507,416.55 and 2,946,885.30 is: 4,420,327.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338,277.70 : 12,507,416.55 = 2,946,885.30 : x
  2. Step 2: Convert to fraction form
    8,338,277.70/12,507,416.55 = 2,946,885.30/x
  3. Step 3: Cross multiply
    8,338,277.70x = 12,507,416.55 × 2,946,885.30
  4. Step 4: Simplify right side
    8,338,277.70x = 36,857,921,972,171.72
  5. Step 5: Solve for x
    x = 36,857,921,972,171.72/8,338,277.70
  6. Step 6: Final answer
    x = 4,420,327.95

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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.