Finding the Fourth Proportional to 13,511,824.16, 18,647,650.94 and 7,711,473.70
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Solution
The fourth proportional to 13,511,824.16, 18,647,650.94 and 7,711,473.70 is: 10,642,594.81
Step by Step Solution
- Step 1: Write the proportion equation
13,511,824.16 : 18,647,650.94 = 7,711,473.70 : x - Step 2: Convert to fraction form
13,511,824.16/18,647,650.94 = 7,711,473.70/x - Step 3: Cross multiply
13,511,824.16x = 18,647,650.94 × 7,711,473.70 - Step 4: Simplify right side
13,511,824.16x = 143,800,869,763,249.81 - Step 5: Solve for x
x = 143,800,869,763,249.81/13,511,824.16 - Step 6: Final answer
x = 10,642,594.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.