Finding the Fourth Proportional to 21,278,905.94, 31,922,842.26 and 6,900,852.62
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Solution
The fourth proportional to 21,278,905.94, 31,922,842.26 and 6,900,852.62 is: 10,352,732.90
Step by Step Solution
- Step 1: Write the proportion equation
21,278,905.94 : 31,922,842.26 = 6,900,852.62 : x - Step 2: Convert to fraction form
21,278,905.94/31,922,842.26 = 6,900,852.62/x - Step 3: Cross multiply
21,278,905.94x = 31,922,842.26 × 6,900,852.62 - Step 4: Simplify right side
21,278,905.94x = 220,294,829,647,767.75 - Step 5: Solve for x
x = 220,294,829,647,767.75/21,278,905.94 - Step 6: Final answer
x = 10,352,732.90
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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.