Finding the Fourth Proportional to 39,355,204.57, 54,311,824.91 and 21,715,251.42
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Solution
The fourth proportional to 39,355,204.57, 54,311,824.91 and 21,715,251.42 is: 29,967,953.31
Step by Step Solution
- Step 1: Write the proportion equation
39,355,204.57 : 54,311,824.91 = 21,715,251.42 : x - Step 2: Convert to fraction form
39,355,204.57/54,311,824.91 = 21,715,251.42/x - Step 3: Cross multiply
39,355,204.57x = 54,311,824.91 × 21,715,251.42 - Step 4: Simplify right side
39,355,204.57x = 1,179,394,932,999,669 - Step 5: Solve for x
x = 1,179,394,932,999,669/39,355,204.57 - Step 6: Final answer
x = 29,967,953.31
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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.