Finding the Fourth Proportional to 7,586,427.60, 11,379,641.40 and 3,990,805.20
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Solution
The fourth proportional to 7,586,427.60, 11,379,641.40 and 3,990,805.20 is: 5,986,207.80
Step by Step Solution
- Step 1: Write the proportion equation
7,586,427.60 : 11,379,641.40 = 3,990,805.20 : x - Step 2: Convert to fraction form
7,586,427.60/11,379,641.40 = 3,990,805.20/x - Step 3: Cross multiply
7,586,427.60x = 11,379,641.40 × 3,990,805.20 - Step 4: Simplify right side
7,586,427.60x = 45,413,932,073,255.28 - Step 5: Solve for x
x = 45,413,932,073,255.28/7,586,427.60 - Step 6: Final answer
x = 5,986,207.80
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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.