Finding the Fourth Proportional to 329,039,497.36, 453,809,741.74 and 289,261,978
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Solution
The fourth proportional to 329,039,497.36, 453,809,741.74 and 289,261,978 is: 398,948,772.37
Step by Step Solution
- Step 1: Write the proportion equation
329,039,497.36 : 453,809,741.74 = 289,261,978 : x - Step 2: Convert to fraction form
329,039,497.36/453,809,741.74 = 289,261,978/x - Step 3: Cross multiply
329,039,497.36x = 453,809,741.74 × 289,261,978 - Step 4: Simplify right side
329,039,497.36x = 131,269,903,531,381,568 - Step 5: Solve for x
x = 131,269,903,531,381,568/329,039,497.36 - Step 6: Final answer
x = 398,948,772.37
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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.