Finding the Fourth Proportional to 4,678,747.21, 7,002,152.47 and 3,921,444.19
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Solution
The fourth proportional to 4,678,747.21, 7,002,152.47 and 3,921,444.19 is: 5,868,782.58
Step by Step Solution
- Step 1: Write the proportion equation
4,678,747.21 : 7,002,152.47 = 3,921,444.19 : x - Step 2: Convert to fraction form
4,678,747.21/7,002,152.47 = 3,921,444.19/x - Step 3: Cross multiply
4,678,747.21x = 7,002,152.47 × 3,921,444.19 - Step 4: Simplify right side
4,678,747.21x = 27,458,550,120,975.65 - Step 5: Solve for x
x = 27,458,550,120,975.65/4,678,747.21 - Step 6: Final answer
x = 5,868,782.58
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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.