Finding the Fourth Proportional to 8,142,975.24, 11,238,687.90 and 4,707,207.96
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Solution
The fourth proportional to 8,142,975.24, 11,238,687.90 and 4,707,207.96 is: 6,496,745.92
Step by Step Solution
- Step 1: Write the proportion equation
8,142,975.24 : 11,238,687.90 = 4,707,207.96 : x - Step 2: Convert to fraction form
8,142,975.24/11,238,687.90 = 4,707,207.96/x - Step 3: Cross multiply
8,142,975.24x = 11,238,687.90 × 4,707,207.96 - Step 4: Simplify right side
8,142,975.24x = 52,902,841,142,835.69 - Step 5: Solve for x
x = 52,902,841,142,835.69/8,142,975.24 - Step 6: Final answer
x = 6,496,745.92
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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.