Finding the Fourth Proportional to 118,087,674.90, 177,131,512.35 and 66,431,609.70
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Solution
The fourth proportional to 118,087,674.90, 177,131,512.35 and 66,431,609.70 is: 99,647,414.55
Step by Step Solution
- Step 1: Write the proportion equation
118,087,674.90 : 177,131,512.35 = 66,431,609.70 : x - Step 2: Convert to fraction form
118,087,674.90/177,131,512.35 = 66,431,609.70/x - Step 3: Cross multiply
118,087,674.90x = 177,131,512.35 × 66,431,609.70 - Step 4: Simplify right side
118,087,674.90x = 11,767,131,494,005,930 - Step 5: Solve for x
x = 11,767,131,494,005,930/118,087,674.90 - Step 6: Final answer
x = 99,647,414.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.