Finding the Fourth Proportional to 5,213,732.61, 7,195,377.07 and 2,891,352.45
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Solution
The fourth proportional to 5,213,732.61, 7,195,377.07 and 2,891,352.45 is: 3,990,302.66
Step by Step Solution
- Step 1: Write the proportion equation
5,213,732.61 : 7,195,377.07 = 2,891,352.45 : x - Step 2: Convert to fraction form
5,213,732.61/7,195,377.07 = 2,891,352.45/x - Step 3: Cross multiply
5,213,732.61x = 7,195,377.07 × 2,891,352.45 - Step 4: Simplify right side
5,213,732.61x = 20,804,371,091,269.82 - Step 5: Solve for x
x = 20,804,371,091,269.82/5,213,732.61 - Step 6: Final answer
x = 3,990,302.66
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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.