Finding the Fourth Proportional to 138,759,382.62, 208,151,917.08 and 45,386,884.26
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Solution
The fourth proportional to 138,759,382.62, 208,151,917.08 and 45,386,884.26 is: 68,084,527.26
Step by Step Solution
- Step 1: Write the proportion equation
138,759,382.62 : 208,151,917.08 = 45,386,884.26 : x - Step 2: Convert to fraction form
138,759,382.62/208,151,917.08 = 45,386,884.26/x - Step 3: Cross multiply
138,759,382.62x = 208,151,917.08 × 45,386,884.26 - Step 4: Simplify right side
138,759,382.62x = 9,447,366,969,007,078 - Step 5: Solve for x
x = 9,447,366,969,007,078/138,759,382.62 - Step 6: Final answer
x = 68,084,527.26
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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.