Finding the Fourth Proportional to 11,008,434.10, 16,459,507.05 and 8,138,652.70
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Solution
The fourth proportional to 11,008,434.10, 16,459,507.05 and 8,138,652.70 is: 12,168,689.05
Step by Step Solution
- Step 1: Write the proportion equation
11,008,434.10 : 16,459,507.05 = 8,138,652.70 : x - Step 2: Convert to fraction form
11,008,434.10/16,459,507.05 = 8,138,652.70/x - Step 3: Cross multiply
11,008,434.10x = 16,459,507.05 × 8,138,652.70 - Step 4: Simplify right side
11,008,434.10x = 133,958,211,493,151.55 - Step 5: Solve for x
x = 133,958,211,493,151.55/11,008,434.10 - Step 6: Final answer
x = 12,168,689.05
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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.