Home / 26,405,999.70-39,608,999.55-12,769,617.30

Finding the Fourth Proportional to 26,405,999.70, 39,608,999.55 and 12,769,617.30

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Solution

The fourth proportional to 26,405,999.70, 39,608,999.55 and 12,769,617.30 is: 19,154,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,405,999.70 : 39,608,999.55 = 12,769,617.30 : x
  2. Step 2: Convert to fraction form
    26,405,999.70/39,608,999.55 = 12,769,617.30/x
  3. Step 3: Cross multiply
    26,405,999.70x = 39,608,999.55 × 12,769,617.30
  4. Step 4: Simplify right side
    26,405,999.70x = 505,791,765,889,372.19
  5. Step 5: Solve for x
    x = 505,791,765,889,372.19/26,405,999.70
  6. Step 6: Final answer
    x = 19,154,425.95

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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.