Finding the Fourth Proportional to 4,886,318.65, 6,743,439.20 and 2,821,421.25
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Solution
The fourth proportional to 4,886,318.65, 6,743,439.20 and 2,821,421.25 is: 3,893,745.79
Step by Step Solution
- Step 1: Write the proportion equation
4,886,318.65 : 6,743,439.20 = 2,821,421.25 : x - Step 2: Convert to fraction form
4,886,318.65/6,743,439.20 = 2,821,421.25/x - Step 3: Cross multiply
4,886,318.65x = 6,743,439.20 × 2,821,421.25 - Step 4: Simplify right side
4,886,318.65x = 19,026,082,642,629.68 - Step 5: Solve for x
x = 19,026,082,642,629.68/4,886,318.65 - Step 6: Final answer
x = 3,893,745.79
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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.