Finding the Fourth Proportional to 7,372,422.32, 11,058,623.97 and 1,981,072.80
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Solution
The fourth proportional to 7,372,422.32, 11,058,623.97 and 1,981,072.80 is: 2,971,606.65
Step by Step Solution
- Step 1: Write the proportion equation
7,372,422.32 : 11,058,623.97 = 1,981,072.80 : x - Step 2: Convert to fraction form
7,372,422.32/11,058,623.97 = 1,981,072.80/x - Step 3: Cross multiply
7,372,422.32x = 11,058,623.97 × 1,981,072.80 - Step 4: Simplify right side
7,372,422.32x = 21,907,939,152,395.02 - Step 5: Solve for x
x = 21,907,939,152,395.02/7,372,422.32 - Step 6: Final answer
x = 2,971,606.65
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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.