Finding the Fourth Proportional to 2,198,407,861.20, 3,297,611,791.80 and 744,385,285.20
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Solution
The fourth proportional to 2,198,407,861.20, 3,297,611,791.80 and 744,385,285.20 is: 1,116,577,927.80
Step by Step Solution
- Step 1: Write the proportion equation
2,198,407,861.20 : 3,297,611,791.80 = 744,385,285.20 : x - Step 2: Convert to fraction form
2,198,407,861.20/3,297,611,791.80 = 744,385,285.20/x - Step 3: Cross multiply
2,198,407,861.20x = 3,297,611,791.80 × 744,385,285.20 - Step 4: Simplify right side
2,198,407,861.20x = 2,454,693,694,117,926,400 - Step 5: Solve for x
x = 2,454,693,694,117,926,400/2,198,407,861.20 - Step 6: Final answer
x = 1,116,577,927.80
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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.