Finding the Fourth Proportional to 134,720,576.80, 202,080,865.20 and 121,115,687.20
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Solution
The fourth proportional to 134,720,576.80, 202,080,865.20 and 121,115,687.20 is: 181,673,530.80
Step by Step Solution
- Step 1: Write the proportion equation
134,720,576.80 : 202,080,865.20 = 121,115,687.20 : x - Step 2: Convert to fraction form
134,720,576.80/202,080,865.20 = 121,115,687.20/x - Step 3: Cross multiply
134,720,576.80x = 202,080,865.20 × 121,115,687.20 - Step 4: Simplify right side
134,720,576.80x = 24,475,162,858,668,564 - Step 5: Solve for x
x = 24,475,162,858,668,564/134,720,576.80 - Step 6: Final answer
x = 181,673,530.80
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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.