Finding the Fourth Proportional to 7,485,745.20, 11,232,573.84 and 5,311,367.28
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Solution
The fourth proportional to 7,485,745.20, 11,232,573.84 and 5,311,367.28 is: 7,969,857.85
Step by Step Solution
- Step 1: Write the proportion equation
7,485,745.20 : 11,232,573.84 = 5,311,367.28 : x - Step 2: Convert to fraction form
7,485,745.20/11,232,573.84 = 5,311,367.28/x - Step 3: Cross multiply
7,485,745.20x = 11,232,573.84 × 5,311,367.28 - Step 4: Simplify right side
7,485,745.20x = 59,660,325,163,959.96 - Step 5: Solve for x
x = 59,660,325,163,959.96/7,485,745.20 - Step 6: Final answer
x = 7,969,857.85
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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.