Finding the Fourth Proportional to 3,909,649,839.40, 5,864,474,759.10 and 1,149,557,861.80
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Solution
The fourth proportional to 3,909,649,839.40, 5,864,474,759.10 and 1,149,557,861.80 is: 1,724,336,792.70
Step by Step Solution
- Step 1: Write the proportion equation
3,909,649,839.40 : 5,864,474,759.10 = 1,149,557,861.80 : x - Step 2: Convert to fraction form
3,909,649,839.40/5,864,474,759.10 = 1,149,557,861.80/x - Step 3: Cross multiply
3,909,649,839.40x = 5,864,474,759.10 × 1,149,557,861.80 - Step 4: Simplify right side
3,909,649,839.40x = 6,741,553,064,651,066,368 - Step 5: Solve for x
x = 6,741,553,064,651,066,368/3,909,649,839.40 - Step 6: Final answer
x = 1,724,336,792.70
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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.