Finding the Fourth Proportional to 154,784,761.26, 213,596,566.41 and 84,220,661.91
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Solution
The fourth proportional to 154,784,761.26, 213,596,566.41 and 84,220,661.91 is: 116,221,028.86
Step by Step Solution
- Step 1: Write the proportion equation
154,784,761.26 : 213,596,566.41 = 84,220,661.91 : x - Step 2: Convert to fraction form
154,784,761.26/213,596,566.41 = 84,220,661.91/x - Step 3: Cross multiply
154,784,761.26x = 213,596,566.41 × 84,220,661.91 - Step 4: Simplify right side
154,784,761.26x = 17,989,244,204,753,472 - Step 5: Solve for x
x = 17,989,244,204,753,472/154,784,761.26 - Step 6: Final answer
x = 116,221,028.86
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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.