Finding the Fourth Proportional to 5,243,745.28, 7,236,380.32 and 2,920,619.12
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Solution
The fourth proportional to 5,243,745.28, 7,236,380.32 and 2,920,619.12 is: 4,030,460.98
Step by Step Solution
- Step 1: Write the proportion equation
5,243,745.28 : 7,236,380.32 = 2,920,619.12 : x - Step 2: Convert to fraction form
5,243,745.28/7,236,380.32 = 2,920,619.12/x - Step 3: Cross multiply
5,243,745.28x = 7,236,380.32 × 2,920,619.12 - Step 4: Simplify right side
5,243,745.28x = 21,134,710,722,183.72 - Step 5: Solve for x
x = 21,134,710,722,183.72/5,243,745.28 - Step 6: Final answer
x = 4,030,460.98
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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.