Finding the Fourth Proportional to 5,768,578.76, 7,959,754.32 and 3,320,716.64
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Solution
The fourth proportional to 5,768,578.76, 7,959,754.32 and 3,320,716.64 is: 4,582,079.87
Step by Step Solution
- Step 1: Write the proportion equation
5,768,578.76 : 7,959,754.32 = 3,320,716.64 : x - Step 2: Convert to fraction form
5,768,578.76/7,959,754.32 = 3,320,716.64/x - Step 3: Cross multiply
5,768,578.76x = 7,959,754.32 × 3,320,716.64 - Step 4: Simplify right side
5,768,578.76x = 26,432,088,620,735.89 - Step 5: Solve for x
x = 26,432,088,620,735.89/5,768,578.76 - Step 6: Final answer
x = 4,582,079.87
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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.