Finding the Fourth Proportional to 39,302,872.68, 54,238,179.42 and 22,792,786.09
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Solution
The fourth proportional to 39,302,872.68, 54,238,179.42 and 22,792,786.09 is: 31,454,169.55
Step by Step Solution
- Step 1: Write the proportion equation
39,302,872.68 : 54,238,179.42 = 22,792,786.09 : x - Step 2: Convert to fraction form
39,302,872.68/54,238,179.42 = 22,792,786.09/x - Step 3: Cross multiply
39,302,872.68x = 54,238,179.42 × 22,792,786.09 - Step 4: Simplify right side
39,302,872.68x = 1,236,239,221,295,504.75 - Step 5: Solve for x
x = 1,236,239,221,295,504.75/39,302,872.68 - Step 6: Final answer
x = 31,454,169.55
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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.