Finding the Fourth Proportional to 26,349,163.20, 39,446,762.40 and 18,790,891.20
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Solution
The fourth proportional to 26,349,163.20, 39,446,762.40 and 18,790,891.20 is: 28,131,436.84
Step by Step Solution
- Step 1: Write the proportion equation
26,349,163.20 : 39,446,762.40 = 18,790,891.20 : x - Step 2: Convert to fraction form
26,349,163.20/39,446,762.40 = 18,790,891.20/x - Step 3: Cross multiply
26,349,163.20x = 39,446,762.40 × 18,790,891.20 - Step 4: Simplify right side
26,349,163.20x = 741,239,820,450,650.88 - Step 5: Solve for x
x = 741,239,820,450,650.88/26,349,163.20 - Step 6: Final answer
x = 28,131,436.84
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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.