Finding the Fourth Proportional to 7,143,152.62, 9,857,629.92 and 4,203,619.42
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Solution
The fourth proportional to 7,143,152.62, 9,857,629.92 and 4,203,619.42 is: 5,801,041.47
Step by Step Solution
- Step 1: Write the proportion equation
7,143,152.62 : 9,857,629.92 = 4,203,619.42 : x - Step 2: Convert to fraction form
7,143,152.62/9,857,629.92 = 4,203,619.42/x - Step 3: Cross multiply
7,143,152.62x = 9,857,629.92 × 4,203,619.42 - Step 4: Simplify right side
7,143,152.62x = 41,437,724,566,885.05 - Step 5: Solve for x
x = 41,437,724,566,885.05/7,143,152.62 - Step 6: Final answer
x = 5,801,041.47
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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.