Finding the Fourth Proportional to 5,419,779.44, 7,479,432.96 and 2,972,487.92
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Solution
The fourth proportional to 5,419,779.44, 7,479,432.96 and 2,972,487.92 is: 4,102,108.65
Step by Step Solution
- Step 1: Write the proportion equation
5,419,779.44 : 7,479,432.96 = 2,972,487.92 : x - Step 2: Convert to fraction form
5,419,779.44/7,479,432.96 = 2,972,487.92/x - Step 3: Cross multiply
5,419,779.44x = 7,479,432.96 × 2,972,487.92 - Step 4: Simplify right side
5,419,779.44x = 22,232,524,122,049.84 - Step 5: Solve for x
x = 22,232,524,122,049.84/5,419,779.44 - Step 6: Final answer
x = 4,102,108.65
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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.