Finding the Fourth Proportional to 13,515,955.99, 20,273,942.18 and 3,280,830.62
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Solution
The fourth proportional to 13,515,955.99, 20,273,942.18 and 3,280,830.62 is: 4,921,247.91
Step by Step Solution
- Step 1: Write the proportion equation
13,515,955.99 : 20,273,942.18 = 3,280,830.62 : x - Step 2: Convert to fraction form
13,515,955.99/20,273,942.18 = 3,280,830.62/x - Step 3: Cross multiply
13,515,955.99x = 20,273,942.18 × 3,280,830.62 - Step 4: Simplify right side
13,515,955.99x = 66,515,370,199,085.92 - Step 5: Solve for x
x = 66,515,370,199,085.92/13,515,955.99 - Step 6: Final answer
x = 4,921,247.91
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1.5x scale
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.