Finding the Fourth Proportional to 3,167,772.21, 4,375,134 and 2,147,405.49
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Solution
The fourth proportional to 3,167,772.21, 4,375,134 and 2,147,405.49 is: 2,965,865.65
Step by Step Solution
- Step 1: Write the proportion equation
3,167,772.21 : 4,375,134 = 2,147,405.49 : x - Step 2: Convert to fraction form
3,167,772.21/4,375,134 = 2,147,405.49/x - Step 3: Cross multiply
3,167,772.21x = 4,375,134 × 2,147,405.49 - Step 4: Simplify right side
3,167,772.21x = 9,395,186,771,085.66 - Step 5: Solve for x
x = 9,395,186,771,085.66/3,167,772.21 - Step 6: Final answer
x = 2,965,865.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.