Finding the Fourth Proportional to 21,455,732.24, 29,608,910.76 and 11,797,940.24
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Solution
The fourth proportional to 21,455,732.24, 29,608,910.76 and 11,797,940.24 is: 16,281,157.68
Step by Step Solution
- Step 1: Write the proportion equation
21,455,732.24 : 29,608,910.76 = 11,797,940.24 : x - Step 2: Convert to fraction form
21,455,732.24/29,608,910.76 = 11,797,940.24/x - Step 3: Cross multiply
21,455,732.24x = 29,608,910.76 × 11,797,940.24 - Step 4: Simplify right side
21,455,732.24x = 349,324,159,717,973 - Step 5: Solve for x
x = 349,324,159,717,973/21,455,732.24 - Step 6: Final answer
x = 16,281,157.68
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1.5x scale
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.