Finding the Fourth Proportional to 352,440,480.75, 486,339,349.16 and 203,771,140.40
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Solution
The fourth proportional to 352,440,480.75, 486,339,349.16 and 203,771,140.40 is: 281,187,687.60
Step by Step Solution
- Step 1: Write the proportion equation
352,440,480.75 : 486,339,349.16 = 203,771,140.40 : x - Step 2: Convert to fraction form
352,440,480.75/486,339,349.16 = 203,771,140.40/x - Step 3: Cross multiply
352,440,480.75x = 486,339,349.16 × 203,771,140.40 - Step 4: Simplify right side
352,440,480.75x = 99,101,923,797,804,720 - Step 5: Solve for x
x = 99,101,923,797,804,720/352,440,480.75 - Step 6: Final answer
x = 281,187,687.60
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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.