Finding the Fourth Proportional to 3,986,469,125.20, 5,979,703,687.80 and 3,056,659,951.60
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Solution
The fourth proportional to 3,986,469,125.20, 5,979,703,687.80 and 3,056,659,951.60 is: 4,584,989,927.40
Step by Step Solution
- Step 1: Write the proportion equation
3,986,469,125.20 : 5,979,703,687.80 = 3,056,659,951.60 : x - Step 2: Convert to fraction form
3,986,469,125.20/5,979,703,687.80 = 3,056,659,951.60/x - Step 3: Cross multiply
3,986,469,125.20x = 5,979,703,687.80 × 3,056,659,951.60 - Step 4: Simplify right side
3,986,469,125.20x = 18,277,920,784,933,089,280 - Step 5: Solve for x
x = 18,277,920,784,933,089,280/3,986,469,125.20 - Step 6: Final answer
x = 4,584,989,927.40
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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.