Finding the Fourth Proportional to 18,957,213.52, 28,436,629.52 and 7,445,175.68
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Solution
The fourth proportional to 18,957,213.52, 28,436,629.52 and 7,445,175.68 is: 11,168,081.34
Step by Step Solution
- Step 1: Write the proportion equation
18,957,213.52 : 28,436,629.52 = 7,445,175.68 : x - Step 2: Convert to fraction form
18,957,213.52/28,436,629.52 = 7,445,175.68/x - Step 3: Cross multiply
18,957,213.52x = 28,436,629.52 × 7,445,175.68 - Step 4: Simplify right side
18,957,213.52x = 211,715,702,523,474.06 - Step 5: Solve for x
x = 211,715,702,523,474.06/18,957,213.52 - Step 6: Final answer
x = 11,168,081.34
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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.