Finding the Fourth Proportional to 18,270,872.70, 27,397,340.97 and 9,038,177.79
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Solution
The fourth proportional to 18,270,872.70, 27,397,340.97 and 9,038,177.79 is: 13,552,830.38
Step by Step Solution
- Step 1: Write the proportion equation
18,270,872.70 : 27,397,340.97 = 9,038,177.79 : x - Step 2: Convert to fraction form
18,270,872.70/27,397,340.97 = 9,038,177.79/x - Step 3: Cross multiply
18,270,872.70x = 27,397,340.97 × 9,038,177.79 - Step 4: Simplify right side
18,270,872.70x = 247,622,038,660,111.03 - Step 5: Solve for x
x = 247,622,038,660,111.03/18,270,872.70 - Step 6: Final answer
x = 13,552,830.38
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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.