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Finding the Fourth Proportional to 12,446,402.46, 18,644,701.05 and 9,891,928.14

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Solution

The fourth proportional to 12,446,402.46, 18,644,701.05 and 9,891,928.14 is: 14,818,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446,402.46 : 18,644,701.05 = 9,891,928.14 : x
  2. Step 2: Convert to fraction form
    12,446,402.46/18,644,701.05 = 9,891,928.14/x
  3. Step 3: Cross multiply
    12,446,402.46x = 18,644,701.05 × 9,891,928.14
  4. Step 4: Simplify right side
    12,446,402.46x = 184,432,042,978,382.56
  5. Step 5: Solve for x
    x = 184,432,042,978,382.56/12,446,402.46
  6. Step 6: Final answer
    x = 14,818,100.54

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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.