Finding the Fourth Proportional to 8,743,079.80, 13,114,619.70 and 4,963,943.80
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Solution
The fourth proportional to 8,743,079.80, 13,114,619.70 and 4,963,943.80 is: 7,445,915.70
Step by Step Solution
- Step 1: Write the proportion equation
8,743,079.80 : 13,114,619.70 = 4,963,943.80 : x - Step 2: Convert to fraction form
8,743,079.80/13,114,619.70 = 4,963,943.80/x - Step 3: Cross multiply
8,743,079.80x = 13,114,619.70 × 4,963,943.80 - Step 4: Simplify right side
8,743,079.80x = 65,100,235,149,172.85 - Step 5: Solve for x
x = 65,100,235,149,172.85/8,743,079.80 - Step 6: Final answer
x = 7,445,915.70
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Double scale
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Similar ratio
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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.