Finding the Fourth Proportional to 13,136,738.00, 18,128,334.78 and 7,256,266.79
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Solution
The fourth proportional to 13,136,738.00, 18,128,334.78 and 7,256,266.79 is: 10,013,447.29
Step by Step Solution
- Step 1: Write the proportion equation
13,136,738.00 : 18,128,334.78 = 7,256,266.79 : x - Step 2: Convert to fraction form
13,136,738.00/18,128,334.78 = 7,256,266.79/x - Step 3: Cross multiply
13,136,738.00x = 18,128,334.78 × 7,256,266.79 - Step 4: Simplify right side
13,136,738.00x = 131,544,033,531,474.30 - Step 5: Solve for x
x = 131,544,033,531,474.30/13,136,738.00 - Step 6: Final answer
x = 10,013,447.29
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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.