Finding the Fourth Proportional to 5,422,662.54, 8,133,958.68 and 1,379,115.42
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Solution
The fourth proportional to 5,422,662.54, 8,133,958.68 and 1,379,115.42 is: 2,068,664.20
Step by Step Solution
- Step 1: Write the proportion equation
5,422,662.54 : 8,133,958.68 = 1,379,115.42 : x - Step 2: Convert to fraction form
5,422,662.54/8,133,958.68 = 1,379,115.42/x - Step 3: Cross multiply
5,422,662.54x = 8,133,958.68 × 1,379,115.42 - Step 4: Simplify right side
5,422,662.54x = 11,217,667,841,230.84 - Step 5: Solve for x
x = 11,217,667,841,230.84/5,422,662.54 - Step 6: Final answer
x = 2,068,664.20
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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.