Finding the Fourth Proportional to 11,335,130.75, 15,642,635.90 and 6,178,481.21
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Solution
The fourth proportional to 11,335,130.75, 15,642,635.90 and 6,178,481.21 is: 8,526,388.81
Step by Step Solution
- Step 1: Write the proportion equation
11,335,130.75 : 15,642,635.90 = 6,178,481.21 : x - Step 2: Convert to fraction form
11,335,130.75/15,642,635.90 = 6,178,481.21/x - Step 3: Cross multiply
11,335,130.75x = 15,642,635.90 × 6,178,481.21 - Step 4: Simplify right side
11,335,130.75x = 96,647,731,991,235.62 - Step 5: Solve for x
x = 96,647,731,991,235.62/11,335,130.75 - Step 6: Final answer
x = 8,526,388.81
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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.