Finding the Fourth Proportional to 11,138,455.80, 16,691,742.90 and 6,335,998.20
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Solution
The fourth proportional to 11,138,455.80, 16,691,742.90 and 6,335,998.20 is: 9,494,929.54
Step by Step Solution
- Step 1: Write the proportion equation
11,138,455.80 : 16,691,742.90 = 6,335,998.20 : x - Step 2: Convert to fraction form
11,138,455.80/16,691,742.90 = 6,335,998.20/x - Step 3: Cross multiply
11,138,455.80x = 16,691,742.90 × 6,335,998.20 - Step 4: Simplify right side
11,138,455.80x = 105,758,852,969,262.78 - Step 5: Solve for x
x = 105,758,852,969,262.78/11,138,455.80 - Step 6: Final answer
x = 9,494,929.54
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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.