Home / 12,691,376.28-19,029,910.42-4,169,424.60

Finding the Fourth Proportional to 12,691,376.28, 19,029,910.42 and 4,169,424.60

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Solution

The fourth proportional to 12,691,376.28, 19,029,910.42 and 4,169,424.60 is: 6,251,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,691,376.28 : 19,029,910.42 = 4,169,424.60 : x
  2. Step 2: Convert to fraction form
    12,691,376.28/19,029,910.42 = 4,169,424.60/x
  3. Step 3: Cross multiply
    12,691,376.28x = 19,029,910.42 × 4,169,424.60
  4. Step 4: Simplify right side
    12,691,376.28x = 79,343,776,640,944.34
  5. Step 5: Solve for x
    x = 79,343,776,640,944.34/12,691,376.28
  6. Step 6: Final answer
    x = 6,251,786.64

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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.