Finding the Fourth Proportional to 13,082,349.78, 18,053,324.09 and 7,201,936.17
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Solution
The fourth proportional to 13,082,349.78, 18,053,324.09 and 7,201,936.17 is: 9,938,496.52
Step by Step Solution
- Step 1: Write the proportion equation
13,082,349.78 : 18,053,324.09 = 7,201,936.17 : x - Step 2: Convert to fraction form
13,082,349.78/18,053,324.09 = 7,201,936.17/x - Step 3: Cross multiply
13,082,349.78x = 18,053,324.09 × 7,201,936.17 - Step 4: Simplify right side
13,082,349.78x = 130,018,887,761,626.98 - Step 5: Solve for x
x = 130,018,887,761,626.98/13,082,349.78 - Step 6: Final answer
x = 9,938,496.52
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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.