Finding the Fourth Proportional to 7,378,128.56, 11,052,371.08 and 3,673,992.92
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Solution
The fourth proportional to 7,378,128.56, 11,052,371.08 and 3,673,992.92 is: 5,503,608.78
Step by Step Solution
- Step 1: Write the proportion equation
7,378,128.56 : 11,052,371.08 = 3,673,992.92 : x - Step 2: Convert to fraction form
7,378,128.56/11,052,371.08 = 3,673,992.92/x - Step 3: Cross multiply
7,378,128.56x = 11,052,371.08 × 3,673,992.92 - Step 4: Simplify right side
7,378,128.56x = 40,606,333,097,132.75 - Step 5: Solve for x
x = 40,606,333,097,132.75/7,378,128.56 - Step 6: Final answer
x = 5,503,608.78
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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.