Finding the Fourth Proportional to 5,639,745.47, 7,782,858.61 and 3,061,427.99
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Solution
The fourth proportional to 5,639,745.47, 7,782,858.61 and 3,061,427.99 is: 4,224,775.97
Step by Step Solution
- Step 1: Write the proportion equation
5,639,745.47 : 7,782,858.61 = 3,061,427.99 : x - Step 2: Convert to fraction form
5,639,745.47/7,782,858.61 = 3,061,427.99/x - Step 3: Cross multiply
5,639,745.47x = 7,782,858.61 × 3,061,427.99 - Step 4: Simplify right side
5,639,745.47x = 23,826,661,144,298.63 - Step 5: Solve for x
x = 23,826,661,144,298.63/5,639,745.47 - Step 6: Final answer
x = 4,224,775.97
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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.