Finding the Fourth Proportional to 358,848,805.75, 495,211,551.21 and 193,836,376.87
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Solution
The fourth proportional to 358,848,805.75, 495,211,551.21 and 193,836,376.87 is: 267,494,307.72
Step by Step Solution
- Step 1: Write the proportion equation
358,848,805.75 : 495,211,551.21 = 193,836,376.87 : x - Step 2: Convert to fraction form
358,848,805.75/495,211,551.21 = 193,836,376.87/x - Step 3: Cross multiply
358,848,805.75x = 495,211,551.21 × 193,836,376.87 - Step 4: Simplify right side
358,848,805.75x = 95,990,012,870,718,864 - Step 5: Solve for x
x = 95,990,012,870,718,864/358,848,805.75 - Step 6: Final answer
x = 267,494,307.72
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.