Finding the Fourth Proportional to 8,021,212.20, 12,043,628.10 and 6,226,122.60
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Solution
The fourth proportional to 8,021,212.20, 12,043,628.10 and 6,226,122.60 is: 9,348,350.75
Step by Step Solution
- Step 1: Write the proportion equation
8,021,212.20 : 12,043,628.10 = 6,226,122.60 : x - Step 2: Convert to fraction form
8,021,212.20/12,043,628.10 = 6,226,122.60/x - Step 3: Cross multiply
8,021,212.20x = 12,043,628.10 × 6,226,122.60 - Step 4: Simplify right side
8,021,212.20x = 74,985,105,099,405.05 - Step 5: Solve for x
x = 74,985,105,099,405.05/8,021,212.20 - Step 6: Final answer
x = 9,348,350.75
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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.