Finding the Fourth Proportional to 11,008,432.60, 16,459,504.80 and 8,138,651.20
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Solution
The fourth proportional to 11,008,432.60, 16,459,504.80 and 8,138,651.20 is: 12,168,686.80
Step by Step Solution
- Step 1: Write the proportion equation
11,008,432.60 : 16,459,504.80 = 8,138,651.20 : x - Step 2: Convert to fraction form
11,008,432.60/16,459,504.80 = 8,138,651.20/x - Step 3: Cross multiply
11,008,432.60x = 16,459,504.80 × 8,138,651.20 - Step 4: Simplify right side
11,008,432.60x = 133,958,168,491,925.77 - Step 5: Solve for x
x = 133,958,168,491,925.77/11,008,432.60 - Step 6: Final answer
x = 12,168,686.80
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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.