Finding the Fourth Proportional to 7,648,819.20, 11,474,611.20 and 3,852,748.80
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Solution
The fourth proportional to 7,648,819.20, 11,474,611.20 and 3,852,748.80 is: 5,779,819.52
Step by Step Solution
- Step 1: Write the proportion equation
7,648,819.20 : 11,474,611.20 = 3,852,748.80 : x - Step 2: Convert to fraction form
7,648,819.20/11,474,611.20 = 3,852,748.80/x - Step 3: Cross multiply
7,648,819.20x = 11,474,611.20 × 3,852,748.80 - Step 4: Simplify right side
7,648,819.20x = 44,208,794,531,266.55 - Step 5: Solve for x
x = 44,208,794,531,266.55/7,648,819.20 - Step 6: Final answer
x = 5,779,819.52
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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.