Finding the Fourth Proportional to 39,331,462.52, 54,276,229.42 and 21,690,355.98
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Solution
The fourth proportional to 39,331,462.52, 54,276,229.42 and 21,690,355.98 is: 29,932,035.62
Step by Step Solution
- Step 1: Write the proportion equation
39,331,462.52 : 54,276,229.42 = 21,690,355.98 : x - Step 2: Convert to fraction form
39,331,462.52/54,276,229.42 = 21,690,355.98/x - Step 3: Cross multiply
39,331,462.52x = 54,276,229.42 × 21,690,355.98 - Step 4: Simplify right side
39,331,462.52x = 1,177,270,737,114,187.25 - Step 5: Solve for x
x = 1,177,270,737,114,187.25/39,331,462.52 - Step 6: Final answer
x = 29,932,035.62
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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.