Finding the Fourth Proportional to 12,078,321.42, 18,125,453.75 and 6,402,531.54
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Solution
The fourth proportional to 12,078,321.42, 18,125,453.75 and 6,402,531.54 is: 9,608,022.94
Step by Step Solution
- Step 1: Write the proportion equation
12,078,321.42 : 18,125,453.75 = 6,402,531.54 : x - Step 2: Convert to fraction form
12,078,321.42/18,125,453.75 = 6,402,531.54/x - Step 3: Cross multiply
12,078,321.42x = 18,125,453.75 × 6,402,531.54 - Step 4: Simplify right side
12,078,321.42x = 116,048,789,279,173.62 - Step 5: Solve for x
x = 116,048,789,279,173.62/12,078,321.42 - Step 6: Final answer
x = 9,608,022.94
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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.