Finding the Fourth Proportional to 5,689,059.20, 8,521,147.20 and 4,416,905.60
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Solution
The fourth proportional to 5,689,059.20, 8,521,147.20 and 4,416,905.60 is: 6,615,698.92
Step by Step Solution
- Step 1: Write the proportion equation
5,689,059.20 : 8,521,147.20 = 4,416,905.60 : x - Step 2: Convert to fraction form
5,689,059.20/8,521,147.20 = 4,416,905.60/x - Step 3: Cross multiply
5,689,059.20x = 8,521,147.20 × 4,416,905.60 - Step 4: Simplify right side
5,689,059.20x = 37,637,102,786,104.31 - Step 5: Solve for x
x = 37,637,102,786,104.31/5,689,059.20 - Step 6: Final answer
x = 6,615,698.92
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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.