Finding the Fourth Proportional to 18,424,780.48, 27,640,713.12 and 7,064,343.10
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Solution
The fourth proportional to 18,424,780.48, 27,640,713.12 and 7,064,343.10 is: 10,597,872.86
Step by Step Solution
- Step 1: Write the proportion equation
18,424,780.48 : 27,640,713.12 = 7,064,343.10 : x - Step 2: Convert to fraction form
18,424,780.48/27,640,713.12 = 7,064,343.10/x - Step 3: Cross multiply
18,424,780.48x = 27,640,713.12 × 7,064,343.10 - Step 4: Simplify right side
18,424,780.48x = 195,263,481,008,351.47 - Step 5: Solve for x
x = 195,263,481,008,351.47/18,424,780.48 - Step 6: Final answer
x = 10,597,872.86
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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.