Finding the Fourth Proportional to 15,527,059.70, 21,426,467.98 and 8,557,716.13
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Solution
The fourth proportional to 15,527,059.70, 21,426,467.98 and 8,557,716.13 is: 11,809,166.33
Step by Step Solution
- Step 1: Write the proportion equation
15,527,059.70 : 21,426,467.98 = 8,557,716.13 : x - Step 2: Convert to fraction form
15,527,059.70/21,426,467.98 = 8,557,716.13/x - Step 3: Cross multiply
15,527,059.70x = 21,426,467.98 × 8,557,716.13 - Step 4: Simplify right side
15,527,059.70x = 183,361,630,491,453.62 - Step 5: Solve for x
x = 183,361,630,491,453.62/15,527,059.70 - Step 6: Final answer
x = 11,809,166.33
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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.