Finding the Fourth Proportional to 12,216,246.80, 18,324,370.20 and 8,124,151.10
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Solution
The fourth proportional to 12,216,246.80, 18,324,370.20 and 8,124,151.10 is: 12,186,226.65
Step by Step Solution
- Step 1: Write the proportion equation
12,216,246.80 : 18,324,370.20 = 8,124,151.10 : x - Step 2: Convert to fraction form
12,216,246.80/18,324,370.20 = 8,124,151.10/x - Step 3: Cross multiply
12,216,246.80x = 18,324,370.20 × 8,124,151.10 - Step 4: Simplify right side
12,216,246.80x = 148,869,952,317,137.22 - Step 5: Solve for x
x = 148,869,952,317,137.22/12,216,246.80 - Step 6: Final answer
x = 12,186,226.65
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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.