Finding the Fourth Proportional to 235,152,485.97, 324,531,090.72 and 129,324,532.65
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Solution
The fourth proportional to 235,152,485.97, 324,531,090.72 and 129,324,532.65 is: 178,479,217.28
Step by Step Solution
- Step 1: Write the proportion equation
235,152,485.97 : 324,531,090.72 = 129,324,532.65 : x - Step 2: Convert to fraction form
235,152,485.97/324,531,090.72 = 129,324,532.65/x - Step 3: Cross multiply
235,152,485.97x = 324,531,090.72 × 129,324,532.65 - Step 4: Simplify right side
235,152,485.97x = 41,969,831,637,758,760 - Step 5: Solve for x
x = 41,969,831,637,758,760/235,152,485.97 - Step 6: Final answer
x = 178,479,217.28
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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.