Finding the Fourth Proportional to 11,008,420.10, 16,459,486.05 and 8,138,638.70
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Solution
The fourth proportional to 11,008,420.10, 16,459,486.05 and 8,138,638.70 is: 12,168,668.07
Step by Step Solution
- Step 1: Write the proportion equation
11,008,420.10 : 16,459,486.05 = 8,138,638.70 : x - Step 2: Convert to fraction form
11,008,420.10/16,459,486.05 = 8,138,638.70/x - Step 3: Cross multiply
11,008,420.10x = 16,459,486.05 × 8,138,638.70 - Step 4: Simplify right side
11,008,420.10x = 133,957,810,148,640.14 - Step 5: Solve for x
x = 133,957,810,148,640.14/11,008,420.10 - Step 6: Final answer
x = 12,168,668.07
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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.