Finding the Fourth Proportional to 3,921,529.84, 5,412,353.20 and 3,267,118.08
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Solution
The fourth proportional to 3,921,529.84, 5,412,353.20 and 3,267,118.08 is: 4,509,157.83
Step by Step Solution
- Step 1: Write the proportion equation
3,921,529.84 : 5,412,353.20 = 3,267,118.08 : x - Step 2: Convert to fraction form
3,921,529.84/5,412,353.20 = 3,267,118.08/x - Step 3: Cross multiply
3,921,529.84x = 5,412,353.20 × 3,267,118.08 - Step 4: Simplify right side
3,921,529.84x = 17,682,796,995,065.86 - Step 5: Solve for x
x = 17,682,796,995,065.86/3,921,529.84 - Step 6: Final answer
x = 4,509,157.83
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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.