Finding the Fourth Proportional to 8,247,315.60, 12,374,083.80 and 3,991,251.60
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Solution
The fourth proportional to 8,247,315.60, 12,374,083.80 and 3,991,251.60 is: 5,988,382.66
Step by Step Solution
- Step 1: Write the proportion equation
8,247,315.60 : 12,374,083.80 = 3,991,251.60 : x - Step 2: Convert to fraction form
8,247,315.60/12,374,083.80 = 3,991,251.60/x - Step 3: Cross multiply
8,247,315.60x = 12,374,083.80 × 3,991,251.60 - Step 4: Simplify right side
8,247,315.60x = 49,388,081,765,284.09 - Step 5: Solve for x
x = 49,388,081,765,284.09/8,247,315.60 - Step 6: Final answer
x = 5,988,382.66
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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.