Finding the Fourth Proportional to 12,307,529.20, 18,461,293.80 and 8,276,450.80
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Solution
The fourth proportional to 12,307,529.20, 18,461,293.80 and 8,276,450.80 is: 12,414,676.20
Step by Step Solution
- Step 1: Write the proportion equation
12,307,529.20 : 18,461,293.80 = 8,276,450.80 : x - Step 2: Convert to fraction form
12,307,529.20/18,461,293.80 = 8,276,450.80/x - Step 3: Cross multiply
12,307,529.20x = 18,461,293.80 × 8,276,450.80 - Step 4: Simplify right side
12,307,529.20x = 152,793,989,840,045.03 - Step 5: Solve for x
x = 152,793,989,840,045.03/12,307,529.20 - Step 6: Final answer
x = 12,414,676.20
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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.