Finding the Fourth Proportional to 5,385,163.26, 7,462,964.69 and 5,282,971.64
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Solution
The fourth proportional to 5,385,163.26, 7,462,964.69 and 5,282,971.64 is: 7,321,343.63
Step by Step Solution
- Step 1: Write the proportion equation
5,385,163.26 : 7,462,964.69 = 5,282,971.64 : x - Step 2: Convert to fraction form
5,385,163.26/7,462,964.69 = 5,282,971.64/x - Step 3: Cross multiply
5,385,163.26x = 7,462,964.69 × 5,282,971.64 - Step 4: Simplify right side
5,385,163.26x = 39,426,630,743,861.70 - Step 5: Solve for x
x = 39,426,630,743,861.70/5,385,163.26 - Step 6: Final answer
x = 7,321,343.63
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.