Finding the Fourth Proportional to 14,580,440.75, 20,121,619.11 and 8,385,491.66
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Solution
The fourth proportional to 14,580,440.75, 20,121,619.11 and 8,385,491.66 is: 11,572,329.82
Step by Step Solution
- Step 1: Write the proportion equation
14,580,440.75 : 20,121,619.11 = 8,385,491.66 : x - Step 2: Convert to fraction form
14,580,440.75/20,121,619.11 = 8,385,491.66/x - Step 3: Cross multiply
14,580,440.75x = 20,121,619.11 × 8,385,491.66 - Step 4: Simplify right side
14,580,440.75x = 168,729,669,232,601.62 - Step 5: Solve for x
x = 168,729,669,232,601.62/14,580,440.75 - Step 6: Final answer
x = 11,572,329.82
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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.