Finding the Fourth Proportional to 7,439,866.61, 11,163,232.08 and 3,397,593.60
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Solution
The fourth proportional to 7,439,866.61, 11,163,232.08 and 3,397,593.60 is: 5,097,957.78
Step by Step Solution
- Step 1: Write the proportion equation
7,439,866.61 : 11,163,232.08 = 3,397,593.60 : x - Step 2: Convert to fraction form
7,439,866.61/11,163,232.08 = 3,397,593.60/x - Step 3: Cross multiply
7,439,866.61x = 11,163,232.08 × 3,397,593.60 - Step 4: Simplify right side
7,439,866.61x = 37,928,125,870,322.69 - Step 5: Solve for x
x = 37,928,125,870,322.69/7,439,866.61 - Step 6: Final answer
x = 5,097,957.78
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.