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Finding the Fourth Proportional to 18,668,835.10, 28,003,252.65 and 8,052,003.10

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Solution

The fourth proportional to 18,668,835.10, 28,003,252.65 and 8,052,003.10 is: 12,078,004.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668,835.10 : 28,003,252.65 = 8,052,003.10 : x
  2. Step 2: Convert to fraction form
    18,668,835.10/28,003,252.65 = 8,052,003.10/x
  3. Step 3: Cross multiply
    18,668,835.10x = 28,003,252.65 × 8,052,003.10
  4. Step 4: Simplify right side
    18,668,835.10x = 225,482,277,147,883.19
  5. Step 5: Solve for x
    x = 225,482,277,147,883.19/18,668,835.10
  6. Step 6: Final answer
    x = 12,078,004.65

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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.