Finding the Fourth Proportional to 18,173,711,286.45, 27,260,566,929.68 and 8,378,190,774.45
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Solution
The fourth proportional to 18,173,711,286.45, 27,260,566,929.68 and 8,378,190,774.45 is: 12,567,286,161.68
Step by Step Solution
- Step 1: Write the proportion equation
18,173,711,286.45 : 27,260,566,929.68 = 8,378,190,774.45 : x - Step 2: Convert to fraction form
18,173,711,286.45/27,260,566,929.68 = 8,378,190,774.45/x - Step 3: Cross multiply
18,173,711,286.45x = 27,260,566,929.68 × 8,378,190,774.45 - Step 4: Simplify right side
18,173,711,286.45x = 228,394,230,356,479,836,160 - Step 5: Solve for x
x = 228,394,230,356,479,836,160/18,173,711,286.45 - Step 6: Final answer
x = 12,567,286,161.68
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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.