Finding the Fourth Proportional to 118,137,135.75, 163,029,276.75 and 65,213,874.15
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Solution
The fourth proportional to 118,137,135.75, 163,029,276.75 and 65,213,874.15 is: 89,995,162.56
Step by Step Solution
- Step 1: Write the proportion equation
118,137,135.75 : 163,029,276.75 = 65,213,874.15 : x - Step 2: Convert to fraction form
118,137,135.75/163,029,276.75 = 65,213,874.15/x - Step 3: Cross multiply
118,137,135.75x = 163,029,276.75 × 65,213,874.15 - Step 4: Simplify right side
118,137,135.75x = 10,631,770,736,740,020 - Step 5: Solve for x
x = 10,631,770,736,740,020/118,137,135.75 - Step 6: Final answer
x = 89,995,162.56
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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.