Finding the Fourth Proportional to 47,388,638.70, 71,082,958.05 and 47,388,638.70
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Solution
The fourth proportional to 47,388,638.70, 71,082,958.05 and 47,388,638.70 is: 71,082,958.05
Step by Step Solution
- Step 1: Write the proportion equation
47,388,638.70 : 71,082,958.05 = 47,388,638.70 : x - Step 2: Convert to fraction form
47,388,638.70/71,082,958.05 = 47,388,638.70/x - Step 3: Cross multiply
47,388,638.70x = 71,082,958.05 × 47,388,638.70 - Step 4: Simplify right side
47,388,638.70x = 3,368,524,616,758,706.50 - Step 5: Solve for x
x = 3,368,524,616,758,706.50/47,388,638.70 - Step 6: Final answer
x = 71,082,958.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.