Finding the Fourth Proportional to 661,189,504.09, 991,927,745.22 and 201,115,715.98
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Solution
The fourth proportional to 661,189,504.09, 991,927,745.22 and 201,115,715.98 is: 301,717,219.41
Step by Step Solution
- Step 1: Write the proportion equation
661,189,504.09 : 991,927,745.22 = 201,115,715.98 : x - Step 2: Convert to fraction form
661,189,504.09/991,927,745.22 = 201,115,715.98/x - Step 3: Cross multiply
661,189,504.09x = 991,927,745.22 × 201,115,715.98 - Step 4: Simplify right side
661,189,504.09x = 199,492,258,680,347,328 - Step 5: Solve for x
x = 199,492,258,680,347,328/661,189,504.09 - Step 6: Final answer
x = 301,717,219.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.