Finding the Fourth Proportional to 27,979,469.20, 41,975,108.70 and 8,812,163.80
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Solution
The fourth proportional to 27,979,469.20, 41,975,108.70 and 8,812,163.80 is: 13,220,105.45
Step by Step Solution
- Step 1: Write the proportion equation
27,979,469.20 : 41,975,108.70 = 8,812,163.80 : x - Step 2: Convert to fraction form
27,979,469.20/41,975,108.70 = 8,812,163.80/x - Step 3: Cross multiply
27,979,469.20x = 41,975,108.70 × 8,812,163.80 - Step 4: Simplify right side
27,979,469.20x = 369,891,533,387,205.12 - Step 5: Solve for x
x = 369,891,533,387,205.12/27,979,469.20 - Step 6: Final answer
x = 13,220,105.45
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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.