Finding the Fourth Proportional to 5,440,293,615.20, 8,160,440,422.80 and 1,993,273,685.60
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Solution
The fourth proportional to 5,440,293,615.20, 8,160,440,422.80 and 1,993,273,685.60 is: 2,989,910,528.40
Step by Step Solution
- Step 1: Write the proportion equation
5,440,293,615.20 : 8,160,440,422.80 = 1,993,273,685.60 : x - Step 2: Convert to fraction form
5,440,293,615.20/8,160,440,422.80 = 1,993,273,685.60/x - Step 3: Cross multiply
5,440,293,615.20x = 8,160,440,422.80 × 1,993,273,685.60 - Step 4: Simplify right side
5,440,293,615.20x = 16,265,991,157,673,777,152 - Step 5: Solve for x
x = 16,265,991,157,673,777,152/5,440,293,615.20 - Step 6: Final answer
x = 2,989,910,528.40
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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.