Finding the Fourth Proportional to 18,402,489.20, 27,603,733.80 and 6,285,634.40
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Solution
The fourth proportional to 18,402,489.20, 27,603,733.80 and 6,285,634.40 is: 9,428,451.60
Step by Step Solution
- Step 1: Write the proportion equation
18,402,489.20 : 27,603,733.80 = 6,285,634.40 : x - Step 2: Convert to fraction form
18,402,489.20/27,603,733.80 = 6,285,634.40/x - Step 3: Cross multiply
18,402,489.20x = 27,603,733.80 × 6,285,634.40 - Step 4: Simplify right side
18,402,489.20x = 173,506,978,741,722.75 - Step 5: Solve for x
x = 173,506,978,741,722.75/18,402,489.20 - Step 6: Final answer
x = 9,428,451.60
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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.