Finding the Fourth Proportional to 5,691,187.62, 7,853,899.86 and 3,112,813.26
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Solution
The fourth proportional to 5,691,187.62, 7,853,899.86 and 3,112,813.26 is: 4,295,715.63
Step by Step Solution
- Step 1: Write the proportion equation
5,691,187.62 : 7,853,899.86 = 3,112,813.26 : x - Step 2: Convert to fraction form
5,691,187.62/7,853,899.86 = 3,112,813.26/x - Step 3: Cross multiply
5,691,187.62x = 7,853,899.86 × 3,112,813.26 - Step 4: Simplify right side
5,691,187.62x = 24,447,723,626,920.14 - Step 5: Solve for x
x = 24,447,723,626,920.14/5,691,187.62 - Step 6: Final answer
x = 4,295,715.63
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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.