Finding the Fourth Proportional to 2,147,661.20, 3,221,491.80 and 651,750.80
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Solution
The fourth proportional to 2,147,661.20, 3,221,491.80 and 651,750.80 is: 977,626.20
Step by Step Solution
- Step 1: Write the proportion equation
2,147,661.20 : 3,221,491.80 = 651,750.80 : x - Step 2: Convert to fraction form
2,147,661.20/3,221,491.80 = 651,750.80/x - Step 3: Cross multiply
2,147,661.20x = 3,221,491.80 × 651,750.80 - Step 4: Simplify right side
2,147,661.20x = 2,099,609,857,843.44 - Step 5: Solve for x
x = 2,099,609,857,843.44/2,147,661.20 - Step 6: Final answer
x = 977,626.20
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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.