Finding the Fourth Proportional to 263,261,715.80, 394,892,573.70 and 186,734,211.80
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Solution
The fourth proportional to 263,261,715.80, 394,892,573.70 and 186,734,211.80 is: 280,101,317.70
Step by Step Solution
- Step 1: Write the proportion equation
263,261,715.80 : 394,892,573.70 = 186,734,211.80 : x - Step 2: Convert to fraction form
263,261,715.80/394,892,573.70 = 186,734,211.80/x - Step 3: Cross multiply
263,261,715.80x = 394,892,573.70 × 186,734,211.80 - Step 4: Simplify right side
263,261,715.80x = 73,739,953,495,542,912 - Step 5: Solve for x
x = 73,739,953,495,542,912/263,261,715.80 - Step 6: Final answer
x = 280,101,317.70
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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.