Finding the Fourth Proportional to 263,261,316.80, 394,891,975.20 and 186,733,812.80
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Solution
The fourth proportional to 263,261,316.80, 394,891,975.20 and 186,733,812.80 is: 280,100,719.20
Step by Step Solution
- Step 1: Write the proportion equation
263,261,316.80 : 394,891,975.20 = 186,733,812.80 : x - Step 2: Convert to fraction form
263,261,316.80/394,891,975.20 = 186,733,812.80/x - Step 3: Cross multiply
263,261,316.80x = 394,891,975.20 × 186,733,812.80 - Step 4: Simplify right side
263,261,316.80x = 73,739,684,173,219,040 - Step 5: Solve for x
x = 73,739,684,173,219,040/263,261,316.80 - Step 6: Final answer
x = 280,100,719.20
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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.