Finding the Fourth Proportional to 12,960,048.70, 19,440,073.05 and 4,981,872.70
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Solution
The fourth proportional to 12,960,048.70, 19,440,073.05 and 4,981,872.70 is: 7,472,809.05
Step by Step Solution
- Step 1: Write the proportion equation
12,960,048.70 : 19,440,073.05 = 4,981,872.70 : x - Step 2: Convert to fraction form
12,960,048.70/19,440,073.05 = 4,981,872.70/x - Step 3: Cross multiply
12,960,048.70x = 19,440,073.05 × 4,981,872.70 - Step 4: Simplify right side
12,960,048.70x = 96,847,969,213,800.75 - Step 5: Solve for x
x = 96,847,969,213,800.75/12,960,048.70 - Step 6: Final answer
x = 7,472,809.05
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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.