Finding the Fourth Proportional to 12,491,571.98, 17,238,271.91 and 6,984,957.49
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Solution
The fourth proportional to 12,491,571.98, 17,238,271.91 and 6,984,957.49 is: 9,639,186.85
Step by Step Solution
- Step 1: Write the proportion equation
12,491,571.98 : 17,238,271.91 = 6,984,957.49 : x - Step 2: Convert to fraction form
12,491,571.98/17,238,271.91 = 6,984,957.49/x - Step 3: Cross multiply
12,491,571.98x = 17,238,271.91 × 6,984,957.49 - Step 4: Simplify right side
12,491,571.98x = 120,408,596,414,390.64 - Step 5: Solve for x
x = 120,408,596,414,390.64/12,491,571.98 - Step 6: Final answer
x = 9,639,186.85
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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.