Finding the Fourth Proportional to 78,434,631.12, 117,608,747.88 and 32,366,028.42
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Solution
The fourth proportional to 78,434,631.12, 117,608,747.88 and 32,366,028.42 is: 48,531,216.66
Step by Step Solution
- Step 1: Write the proportion equation
78,434,631.12 : 117,608,747.88 = 32,366,028.42 : x - Step 2: Convert to fraction form
78,434,631.12/117,608,747.88 = 32,366,028.42/x - Step 3: Cross multiply
78,434,631.12x = 117,608,747.88 × 32,366,028.42 - Step 4: Simplify right side
78,434,631.12x = 3,806,528,076,324,695 - Step 5: Solve for x
x = 3,806,528,076,324,695/78,434,631.12 - Step 6: Final answer
x = 48,531,216.66
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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.