Finding the Fourth Proportional to 235,179,902.84, 324,531,419.04 and 129,340,770.50
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Solution
The fourth proportional to 235,179,902.84, 324,531,419.04 and 129,340,770.50 is: 178,480,998.09
Step by Step Solution
- Step 1: Write the proportion equation
235,179,902.84 : 324,531,419.04 = 129,340,770.50 : x - Step 2: Convert to fraction form
235,179,902.84/324,531,419.04 = 129,340,770.50/x - Step 3: Cross multiply
235,179,902.84x = 324,531,419.04 × 129,340,770.50 - Step 4: Simplify right side
235,179,902.84x = 41,975,143,790,091,976 - Step 5: Solve for x
x = 41,975,143,790,091,976/235,179,902.84 - Step 6: Final answer
x = 178,480,998.09
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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.