Finding the Fourth Proportional to 6,747,450.80, 10,121,176.20 and 4,479,969.20
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Solution
The fourth proportional to 6,747,450.80, 10,121,176.20 and 4,479,969.20 is: 6,719,953.80
Step by Step Solution
- Step 1: Write the proportion equation
6,747,450.80 : 10,121,176.20 = 4,479,969.20 : x - Step 2: Convert to fraction form
6,747,450.80/10,121,176.20 = 4,479,969.20/x - Step 3: Cross multiply
6,747,450.80x = 10,121,176.20 × 4,479,969.20 - Step 4: Simplify right side
6,747,450.80x = 45,342,557,643,773.04 - Step 5: Solve for x
x = 45,342,557,643,773.04/6,747,450.80 - Step 6: Final answer
x = 6,719,953.80
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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.