Finding the Fourth Proportional to 5,239,932.09, 7,231,032.18 and 2,948,087.31
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Solution
The fourth proportional to 5,239,932.09, 7,231,032.18 and 2,948,087.31 is: 4,068,318.80
Step by Step Solution
- Step 1: Write the proportion equation
5,239,932.09 : 7,231,032.18 = 2,948,087.31 : x - Step 2: Convert to fraction form
5,239,932.09/7,231,032.18 = 2,948,087.31/x - Step 3: Cross multiply
5,239,932.09x = 7,231,032.18 × 2,948,087.31 - Step 4: Simplify right side
5,239,932.09x = 21,317,714,208,059.64 - Step 5: Solve for x
x = 21,317,714,208,059.64/5,239,932.09 - Step 6: Final answer
x = 4,068,318.80
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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.