Finding the Fourth Proportional to 204,363,396.42, 282,390,393.79 and 145,523,910.09
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Solution
The fourth proportional to 204,363,396.42, 282,390,393.79 and 145,523,910.09 is: 201,085,688.51
Step by Step Solution
- Step 1: Write the proportion equation
204,363,396.42 : 282,390,393.79 = 145,523,910.09 : x - Step 2: Convert to fraction form
204,363,396.42/282,390,393.79 = 145,523,910.09/x - Step 3: Cross multiply
204,363,396.42x = 282,390,393.79 × 145,523,910.09 - Step 4: Simplify right side
204,363,396.42x = 41,094,554,276,175,656 - Step 5: Solve for x
x = 41,094,554,276,175,656/204,363,396.42 - Step 6: Final answer
x = 201,085,688.51
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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.