Finding the Fourth Proportional to 9,989,375.36, 13,785,350.18 and 5,405,696.73
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Solution
The fourth proportional to 9,989,375.36, 13,785,350.18 and 5,405,696.73 is: 7,459,868.08
Step by Step Solution
- Step 1: Write the proportion equation
9,989,375.36 : 13,785,350.18 = 5,405,696.73 : x - Step 2: Convert to fraction form
9,989,375.36/13,785,350.18 = 5,405,696.73/x - Step 3: Cross multiply
9,989,375.36x = 13,785,350.18 × 5,405,696.73 - Step 4: Simplify right side
9,989,375.36x = 74,519,422,362,902.44 - Step 5: Solve for x
x = 74,519,422,362,902.44/9,989,375.36 - Step 6: Final answer
x = 7,459,868.08
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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.