Finding the Fourth Proportional to 5,578,754.88, 8,363,520.72 and 2,119,778.64
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Solution
The fourth proportional to 5,578,754.88, 8,363,520.72 and 2,119,778.64 is: 3,177,915.67
Step by Step Solution
- Step 1: Write the proportion equation
5,578,754.88 : 8,363,520.72 = 2,119,778.64 : x - Step 2: Convert to fraction form
5,578,754.88/8,363,520.72 = 2,119,778.64/x - Step 3: Cross multiply
5,578,754.88x = 8,363,520.72 × 2,119,778.64 - Step 4: Simplify right side
5,578,754.88x = 17,728,812,577,453.42 - Step 5: Solve for x
x = 17,728,812,577,453.42/5,578,754.88 - Step 6: Final answer
x = 3,177,915.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.