Finding the Fourth Proportional to 5,109,021.36, 7,047,810.96 and 3,174,546.96
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Solution
The fourth proportional to 5,109,021.36, 7,047,810.96 and 3,174,546.96 is: 4,379,235.33
Step by Step Solution
- Step 1: Write the proportion equation
5,109,021.36 : 7,047,810.96 = 3,174,546.96 : x - Step 2: Convert to fraction form
5,109,021.36/7,047,810.96 = 3,174,546.96/x - Step 3: Cross multiply
5,109,021.36x = 7,047,810.96 × 3,174,546.96 - Step 4: Simplify right side
5,109,021.36x = 22,373,606,857,722.68 - Step 5: Solve for x
x = 22,373,606,857,722.68/5,109,021.36 - Step 6: Final answer
x = 4,379,235.33
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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.