Finding the Fourth Proportional to 2,157,255,997.20, 3,235,883,995.80 and 2,135,756,912.40
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Solution
The fourth proportional to 2,157,255,997.20, 3,235,883,995.80 and 2,135,756,912.40 is: 3,203,635,368.60
Step by Step Solution
- Step 1: Write the proportion equation
2,157,255,997.20 : 3,235,883,995.80 = 2,135,756,912.40 : x - Step 2: Convert to fraction form
2,157,255,997.20/3,235,883,995.80 = 2,135,756,912.40/x - Step 3: Cross multiply
2,157,255,997.20x = 3,235,883,995.80 × 2,135,756,912.40 - Step 4: Simplify right side
2,157,255,997.20x = 6,911,061,611,754,383,360 - Step 5: Solve for x
x = 6,911,061,611,754,383,360/2,157,255,997.20 - Step 6: Final answer
x = 3,203,635,368.60
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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.