Finding the Fourth Proportional to 4,666,387.80, 6,439,613.70 and 2,520,211.80
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Solution
The fourth proportional to 4,666,387.80, 6,439,613.70 and 2,520,211.80 is: 3,477,891.49
Step by Step Solution
- Step 1: Write the proportion equation
4,666,387.80 : 6,439,613.70 = 2,520,211.80 : x - Step 2: Convert to fraction form
4,666,387.80/6,439,613.70 = 2,520,211.80/x - Step 3: Cross multiply
4,666,387.80x = 6,439,613.70 × 2,520,211.80 - Step 4: Simplify right side
4,666,387.80x = 16,229,190,434,181.66 - Step 5: Solve for x
x = 16,229,190,434,181.66/4,666,387.80 - Step 6: Final answer
x = 3,477,891.49
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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.