Finding the Fourth Proportional to 18,145,807.80, 27,218,711.70 and 16,466,191.80
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Solution
The fourth proportional to 18,145,807.80, 27,218,711.70 and 16,466,191.80 is: 24,699,287.70
Step by Step Solution
- Step 1: Write the proportion equation
18,145,807.80 : 27,218,711.70 = 16,466,191.80 : x - Step 2: Convert to fraction form
18,145,807.80/27,218,711.70 = 16,466,191.80/x - Step 3: Cross multiply
18,145,807.80x = 27,218,711.70 × 16,466,191.80 - Step 4: Simplify right side
18,145,807.80x = 448,188,527,401,104.06 - Step 5: Solve for x
x = 448,188,527,401,104.06/18,145,807.80 - Step 6: Final answer
x = 24,699,287.70
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1.5x scale
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.