Finding the Fourth Proportional to 18,591,239.80, 27,886,859.70 and 4,944,359.80
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Solution
The fourth proportional to 18,591,239.80, 27,886,859.70 and 4,944,359.80 is: 7,416,539.70
Step by Step Solution
- Step 1: Write the proportion equation
18,591,239.80 : 27,886,859.70 = 4,944,359.80 : x - Step 2: Convert to fraction form
18,591,239.80/27,886,859.70 = 4,944,359.80/x - Step 3: Cross multiply
18,591,239.80x = 27,886,859.70 × 4,944,359.80 - Step 4: Simplify right side
18,591,239.80x = 137,882,668,048,920.05 - Step 5: Solve for x
x = 137,882,668,048,920.05/18,591,239.80 - Step 6: Final answer
x = 7,416,539.70
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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.