Finding the Fourth Proportional to 3,972,027.40, 5,481,236.40 and 2,253,111.02
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Solution
The fourth proportional to 3,972,027.40, 5,481,236.40 and 2,253,111.02 is: 3,109,201.65
Step by Step Solution
- Step 1: Write the proportion equation
3,972,027.40 : 5,481,236.40 = 2,253,111.02 : x - Step 2: Convert to fraction form
3,972,027.40/5,481,236.40 = 2,253,111.02/x - Step 3: Cross multiply
3,972,027.40x = 5,481,236.40 × 2,253,111.02 - Step 4: Simplify right side
3,972,027.40x = 12,349,834,136,065.13 - Step 5: Solve for x
x = 12,349,834,136,065.13/3,972,027.40 - Step 6: Final answer
x = 3,109,201.65
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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.