Finding the Fourth Proportional to 5,365,178.64, 7,400,198.88 and 3,643,309.80
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Solution
The fourth proportional to 5,365,178.64, 7,400,198.88 and 3,643,309.80 is: 5,025,222.63
Step by Step Solution
- Step 1: Write the proportion equation
5,365,178.64 : 7,400,198.88 = 3,643,309.80 : x - Step 2: Convert to fraction form
5,365,178.64/7,400,198.88 = 3,643,309.80/x - Step 3: Cross multiply
5,365,178.64x = 7,400,198.88 × 3,643,309.80 - Step 4: Simplify right side
5,365,178.64x = 26,961,217,101,453.02 - Step 5: Solve for x
x = 26,961,217,101,453.02/5,365,178.64 - Step 6: Final answer
x = 5,025,222.63
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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.