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Finding the Fourth Proportional to 12,956,960.50, 17,888,692.53 and 8,250,012.48

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Solution

The fourth proportional to 12,956,960.50, 17,888,692.53 and 8,250,012.48 is: 11,390,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,960.50 : 17,888,692.53 = 8,250,012.48 : x
  2. Step 2: Convert to fraction form
    12,956,960.50/17,888,692.53 = 8,250,012.48/x
  3. Step 3: Cross multiply
    12,956,960.50x = 17,888,692.53 × 8,250,012.48
  4. Step 4: Simplify right side
    12,956,960.50x = 147,581,936,623,382.78
  5. Step 5: Solve for x
    x = 147,581,936,623,382.78/12,956,960.50
  6. Step 6: Final answer
    x = 11,390,166.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.