Finding the Fourth Proportional to 18,915,137.44, 28,372,733.51 and 5,268,323.05
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Solution
The fourth proportional to 18,915,137.44, 28,372,733.51 and 5,268,323.05 is: 7,902,492.19
Step by Step Solution
- Step 1: Write the proportion equation
18,915,137.44 : 28,372,733.51 = 5,268,323.05 : x - Step 2: Convert to fraction form
18,915,137.44/28,372,733.51 = 5,268,323.05/x - Step 3: Cross multiply
18,915,137.44x = 28,372,733.51 × 5,268,323.05 - Step 4: Simplify right side
18,915,137.44x = 149,476,725,844,966.97 - Step 5: Solve for x
x = 149,476,725,844,966.97/18,915,137.44 - Step 6: Final answer
x = 7,902,492.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.