Finding the Fourth Proportional to 5,213,769.87, 7,193,651.54 and 3,147,152.07
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Solution
The fourth proportional to 5,213,769.87, 7,193,651.54 and 3,147,152.07 is: 4,342,254.43
Step by Step Solution
- Step 1: Write the proportion equation
5,213,769.87 : 7,193,651.54 = 3,147,152.07 : x - Step 2: Convert to fraction form
5,213,769.87/7,193,651.54 = 3,147,152.07/x - Step 3: Cross multiply
5,213,769.87x = 7,193,651.54 × 3,147,152.07 - Step 4: Simplify right side
5,213,769.87x = 22,639,515,319,233.93 - Step 5: Solve for x
x = 22,639,515,319,233.93/5,213,769.87 - Step 6: Final answer
x = 4,342,254.43
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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.