Finding the Fourth Proportional to 7,888,268.63, 11,853,208.91 and 4,247,690.17
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Solution
The fourth proportional to 7,888,268.63, 11,853,208.91 and 4,247,690.17 is: 6,382,738.89
Step by Step Solution
- Step 1: Write the proportion equation
7,888,268.63 : 11,853,208.91 = 4,247,690.17 : x - Step 2: Convert to fraction form
7,888,268.63/11,853,208.91 = 4,247,690.17/x - Step 3: Cross multiply
7,888,268.63x = 11,853,208.91 × 4,247,690.17 - Step 4: Simplify right side
7,888,268.63x = 50,348,758,973,174.38 - Step 5: Solve for x
x = 50,348,758,973,174.38/7,888,268.63 - Step 6: Final answer
x = 6,382,738.89
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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.