Finding the Fourth Proportional to 126,398,473.62, 189,431,240.36 and 53,525,083.02
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Solution
The fourth proportional to 126,398,473.62, 189,431,240.36 and 53,525,083.02 is: 80,217,130.60
Step by Step Solution
- Step 1: Write the proportion equation
126,398,473.62 : 189,431,240.36 = 53,525,083.02 : x - Step 2: Convert to fraction form
126,398,473.62/189,431,240.36 = 53,525,083.02/x - Step 3: Cross multiply
126,398,473.62x = 189,431,240.36 × 53,525,083.02 - Step 4: Simplify right side
126,398,473.62x = 10,139,322,866,582,950 - Step 5: Solve for x
x = 10,139,322,866,582,950/126,398,473.62 - Step 6: Final answer
x = 80,217,130.60
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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.