Finding the Fourth Proportional to 181,916,415.70, 272,874,623.55 and 138,869,694.70
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Solution
The fourth proportional to 181,916,415.70, 272,874,623.55 and 138,869,694.70 is: 208,304,542.05
Step by Step Solution
- Step 1: Write the proportion equation
181,916,415.70 : 272,874,623.55 = 138,869,694.70 : x - Step 2: Convert to fraction form
181,916,415.70/272,874,623.55 = 138,869,694.70/x - Step 3: Cross multiply
181,916,415.70x = 272,874,623.55 × 138,869,694.70 - Step 4: Simplify right side
181,916,415.70x = 37,894,015,663,765,928 - Step 5: Solve for x
x = 37,894,015,663,765,928/181,916,415.70 - Step 6: Final answer
x = 208,304,542.05
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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.