Finding the Fourth Proportional to 10,643,452.80, 15,967,252.80 and 4,252,617.60
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Solution
The fourth proportional to 10,643,452.80, 15,967,252.80 and 4,252,617.60 is: 6,379,754.91
Step by Step Solution
- Step 1: Write the proportion equation
10,643,452.80 : 15,967,252.80 = 4,252,617.60 : x - Step 2: Convert to fraction form
10,643,452.80/15,967,252.80 = 4,252,617.60/x - Step 3: Cross multiply
10,643,452.80x = 15,967,252.80 × 4,252,617.60 - Step 4: Simplify right side
10,643,452.80x = 67,902,620,280,929.27 - Step 5: Solve for x
x = 67,902,620,280,929.27/10,643,452.80 - Step 6: Final answer
x = 6,379,754.91
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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.