Finding the Fourth Proportional to 81,534,579.84, 112,474,842.73 and 48,471,310.21
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Solution
The fourth proportional to 81,534,579.84, 112,474,842.73 and 48,471,310.21 is: 66,864,917.97
Step by Step Solution
- Step 1: Write the proportion equation
81,534,579.84 : 112,474,842.73 = 48,471,310.21 : x - Step 2: Convert to fraction form
81,534,579.84/112,474,842.73 = 48,471,310.21/x - Step 3: Cross multiply
81,534,579.84x = 112,474,842.73 × 48,471,310.21 - Step 4: Simplify right side
81,534,579.84x = 5,451,802,992,786,794 - Step 5: Solve for x
x = 5,451,802,992,786,794/81,534,579.84 - Step 6: Final answer
x = 66,864,917.97
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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.