Finding the Fourth Proportional to 7,244,082.20, 10,866,123.30 and 7,132,107.80
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Solution
The fourth proportional to 7,244,082.20, 10,866,123.30 and 7,132,107.80 is: 10,698,161.70
Step by Step Solution
- Step 1: Write the proportion equation
7,244,082.20 : 10,866,123.30 = 7,132,107.80 : x - Step 2: Convert to fraction form
7,244,082.20/10,866,123.30 = 7,132,107.80/x - Step 3: Cross multiply
7,244,082.20x = 10,866,123.30 × 7,132,107.80 - Step 4: Simplify right side
7,244,082.20x = 77,498,362,743,691.75 - Step 5: Solve for x
x = 77,498,362,743,691.75/7,244,082.20 - Step 6: Final answer
x = 10,698,161.70
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1.5x scale
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.