Finding the Fourth Proportional to 3,998,598,651.88, 5,515,409,161.93 and 2,571,474,059.12
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Solution
The fourth proportional to 3,998,598,651.88, 5,515,409,161.93 and 2,571,474,059.12 is: 3,546,925,515.68
Step by Step Solution
- Step 1: Write the proportion equation
3,998,598,651.88 : 5,515,409,161.93 = 2,571,474,059.12 : x - Step 2: Convert to fraction form
3,998,598,651.88/5,515,409,161.93 = 2,571,474,059.12/x - Step 3: Cross multiply
3,998,598,651.88x = 5,515,409,161.93 × 2,571,474,059.12 - Step 4: Simplify right side
3,998,598,651.88x = 14,182,731,585,311,281,152 - Step 5: Solve for x
x = 14,182,731,585,311,281,152/3,998,598,651.88 - Step 6: Final answer
x = 3,546,925,515.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.