Finding the Fourth Proportional to 213,992,616.26, 320,887,735.53 and 82,896,291.11
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Solution
The fourth proportional to 213,992,616.26, 320,887,735.53 and 82,896,291.11 is: 124,305,238.20
Step by Step Solution
- Step 1: Write the proportion equation
213,992,616.26 : 320,887,735.53 = 82,896,291.11 : x - Step 2: Convert to fraction form
213,992,616.26/320,887,735.53 = 82,896,291.11/x - Step 3: Cross multiply
213,992,616.26x = 320,887,735.53 × 82,896,291.11 - Step 4: Simplify right side
213,992,616.26x = 26,600,403,136,519,132 - Step 5: Solve for x
x = 26,600,403,136,519,132/213,992,616.26 - Step 6: Final answer
x = 124,305,238.20
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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.