Finding the Fourth Proportional to 209,594,639.22, 289,242,578.75 and 115,512,178.70
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Solution
The fourth proportional to 209,594,639.22, 289,242,578.75 and 115,512,178.70 is: 159,407,895.96
Step by Step Solution
- Step 1: Write the proportion equation
209,594,639.22 : 289,242,578.75 = 115,512,178.70 : x - Step 2: Convert to fraction form
209,594,639.22/289,242,578.75 = 115,512,178.70/x - Step 3: Cross multiply
209,594,639.22x = 289,242,578.75 × 115,512,178.70 - Step 4: Simplify right side
209,594,639.22x = 33,411,040,442,195,048 - Step 5: Solve for x
x = 33,411,040,442,195,048/209,594,639.22 - Step 6: Final answer
x = 159,407,895.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.