Finding the Fourth Proportional to 8,579,272.16, 12,868,897.20 and 2,189,524.80
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Solution
The fourth proportional to 8,579,272.16, 12,868,897.20 and 2,189,524.80 is: 3,284,284.38
Step by Step Solution
- Step 1: Write the proportion equation
8,579,272.16 : 12,868,897.20 = 2,189,524.80 : x - Step 2: Convert to fraction form
8,579,272.16/12,868,897.20 = 2,189,524.80/x - Step 3: Cross multiply
8,579,272.16x = 12,868,897.20 × 2,189,524.80 - Step 4: Simplify right side
8,579,272.16x = 28,176,769,568,050.55 - Step 5: Solve for x
x = 28,176,769,568,050.55/8,579,272.16 - Step 6: Final answer
x = 3,284,284.38
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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.