Finding the Fourth Proportional to 18,134,000.20, 27,201,000.30 and 14,024,189.80
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Solution
The fourth proportional to 18,134,000.20, 27,201,000.30 and 14,024,189.80 is: 21,036,284.70
Step by Step Solution
- Step 1: Write the proportion equation
18,134,000.20 : 27,201,000.30 = 14,024,189.80 : x - Step 2: Convert to fraction form
18,134,000.20/27,201,000.30 = 14,024,189.80/x - Step 3: Cross multiply
18,134,000.20x = 27,201,000.30 × 14,024,189.80 - Step 4: Simplify right side
18,134,000.20x = 381,471,990,957,057 - Step 5: Solve for x
x = 381,471,990,957,057/18,134,000.20 - Step 6: Final answer
x = 21,036,284.70
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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.