Finding the Fourth Proportional to 4,421,822.20, 6,616,986.90 and 3,067,631.80
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Solution
The fourth proportional to 4,421,822.20, 6,616,986.90 and 3,067,631.80 is: 4,590,523.66
Step by Step Solution
- Step 1: Write the proportion equation
4,421,822.20 : 6,616,986.90 = 3,067,631.80 : x - Step 2: Convert to fraction form
4,421,822.20/6,616,986.90 = 3,067,631.80/x - Step 3: Cross multiply
4,421,822.20x = 6,616,986.90 × 3,067,631.80 - Step 4: Simplify right side
4,421,822.20x = 20,298,479,434,623.42 - Step 5: Solve for x
x = 20,298,479,434,623.42/4,421,822.20 - Step 6: Final answer
x = 4,590,523.66
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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.