Finding the Fourth Proportional to 11,996,446.63, 16,555,059.97 and 6,489,819.85
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Solution
The fourth proportional to 11,996,446.63, 16,555,059.97 and 6,489,819.85 is: 8,955,931.71
Step by Step Solution
- Step 1: Write the proportion equation
11,996,446.63 : 16,555,059.97 = 6,489,819.85 : x - Step 2: Convert to fraction form
11,996,446.63/16,555,059.97 = 6,489,819.85/x - Step 3: Cross multiply
11,996,446.63x = 16,555,059.97 × 6,489,819.85 - Step 4: Simplify right side
11,996,446.63x = 107,439,356,811,246.41 - Step 5: Solve for x
x = 107,439,356,811,246.41/11,996,446.63 - Step 6: Final answer
x = 8,955,931.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.