Finding the Fourth Proportional to 18,173,711,260.70, 27,260,566,891.05 and 8,378,190,748.70
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Solution
The fourth proportional to 18,173,711,260.70, 27,260,566,891.05 and 8,378,190,748.70 is: 12,567,286,123.05
Step by Step Solution
- Step 1: Write the proportion equation
18,173,711,260.70 : 27,260,566,891.05 = 8,378,190,748.70 : x - Step 2: Convert to fraction form
18,173,711,260.70/27,260,566,891.05 = 8,378,190,748.70/x - Step 3: Cross multiply
18,173,711,260.70x = 27,260,566,891.05 × 8,378,190,748.70 - Step 4: Simplify right side
18,173,711,260.70x = 228,394,229,330,912,608,256 - Step 5: Solve for x
x = 228,394,229,330,912,608,256/18,173,711,260.70 - Step 6: Final answer
x = 12,567,286,123.05
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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.