Finding the Fourth Proportional to 4,910,946.20, 7,353,977.70 and 3,915,618.20
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Solution
The fourth proportional to 4,910,946.20, 7,353,977.70 and 3,915,618.20 is: 5,863,507.31
Step by Step Solution
- Step 1: Write the proportion equation
4,910,946.20 : 7,353,977.70 = 3,915,618.20 : x - Step 2: Convert to fraction form
4,910,946.20/7,353,977.70 = 3,915,618.20/x - Step 3: Cross multiply
4,910,946.20x = 7,353,977.70 × 3,915,618.20 - Step 4: Simplify right side
4,910,946.20x = 28,795,368,924,514.14 - Step 5: Solve for x
x = 28,795,368,924,514.14/4,910,946.20 - Step 6: Final answer
x = 5,863,507.31
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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.