Finding the Fourth Proportional to 8,192,514.70, 12,288,772.05 and 7,247,730.70
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Solution
The fourth proportional to 8,192,514.70, 12,288,772.05 and 7,247,730.70 is: 10,871,596.05
Step by Step Solution
- Step 1: Write the proportion equation
8,192,514.70 : 12,288,772.05 = 7,247,730.70 : x - Step 2: Convert to fraction form
8,192,514.70/12,288,772.05 = 7,247,730.70/x - Step 3: Cross multiply
8,192,514.70x = 12,288,772.05 × 7,247,730.70 - Step 4: Simplify right side
8,192,514.70x = 89,065,710,452,086.94 - Step 5: Solve for x
x = 89,065,710,452,086.94/8,192,514.70 - Step 6: Final answer
x = 10,871,596.05
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Double scale
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Similar ratio
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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.