Finding the Fourth Proportional to 5,438,028.87, 7,504,329.87 and 2,990,639.85
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Solution
The fourth proportional to 5,438,028.87, 7,504,329.87 and 2,990,639.85 is: 4,127,000.52
Step by Step Solution
- Step 1: Write the proportion equation
5,438,028.87 : 7,504,329.87 = 2,990,639.85 : x - Step 2: Convert to fraction form
5,438,028.87/7,504,329.87 = 2,990,639.85/x - Step 3: Cross multiply
5,438,028.87x = 7,504,329.87 × 2,990,639.85 - Step 4: Simplify right side
5,438,028.87x = 22,442,747,956,767.32 - Step 5: Solve for x
x = 22,442,747,956,767.32/5,438,028.87 - Step 6: Final answer
x = 4,127,000.52
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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.