Finding the Fourth Proportional to 13,579,220.02, 18,738,949.94 and 7,467,648.52
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Solution
The fourth proportional to 13,579,220.02, 18,738,949.94 and 7,467,648.52 is: 10,305,149.45
Step by Step Solution
- Step 1: Write the proportion equation
13,579,220.02 : 18,738,949.94 = 7,467,648.52 : x - Step 2: Convert to fraction form
13,579,220.02/18,738,949.94 = 7,467,648.52/x - Step 3: Cross multiply
13,579,220.02x = 18,738,949.94 × 7,467,648.52 - Step 4: Simplify right side
13,579,220.02x = 139,935,891,785,795.09 - Step 5: Solve for x
x = 139,935,891,785,795.09/13,579,220.02 - Step 6: Final answer
x = 10,305,149.45
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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.