Finding the Fourth Proportional to 7,989,376.14, 11,990,278.53 and 5,577,559.02
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Solution
The fourth proportional to 7,989,376.14, 11,990,278.53 and 5,577,559.02 is: 8,370,676.88
Step by Step Solution
- Step 1: Write the proportion equation
7,989,376.14 : 11,990,278.53 = 5,577,559.02 : x - Step 2: Convert to fraction form
7,989,376.14/11,990,278.53 = 5,577,559.02/x - Step 3: Cross multiply
7,989,376.14x = 11,990,278.53 × 5,577,559.02 - Step 4: Simplify right side
7,989,376.14x = 66,876,486,167,313.83 - Step 5: Solve for x
x = 66,876,486,167,313.83/7,989,376.14 - Step 6: Final answer
x = 8,370,676.88
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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.