Home / 20,193,821.28-27,869,667.39-12,458,664.72

Finding the Fourth Proportional to 20,193,821.28, 27,869,667.39 and 12,458,664.72

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Solution

The fourth proportional to 20,193,821.28, 27,869,667.39 and 12,458,664.72 is: 17,194,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193,821.28 : 27,869,667.39 = 12,458,664.72 : x
  2. Step 2: Convert to fraction form
    20,193,821.28/27,869,667.39 = 12,458,664.72/x
  3. Step 3: Cross multiply
    20,193,821.28x = 27,869,667.39 × 12,458,664.72
  4. Step 4: Simplify right side
    20,193,821.28x = 347,218,841,869,927.50
  5. Step 5: Solve for x
    x = 347,218,841,869,927.50/20,193,821.28
  6. Step 6: Final answer
    x = 17,194,310.93

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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.