Finding the Fourth Proportional to 239,765,561.58, 330,876,470.96 and 129,757,274.58
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Solution
The fourth proportional to 239,765,561.58, 330,876,470.96 and 129,757,274.58 is: 179,065,036.74
Step by Step Solution
- Step 1: Write the proportion equation
239,765,561.58 : 330,876,470.96 = 129,757,274.58 : x - Step 2: Convert to fraction form
239,765,561.58/330,876,470.96 = 129,757,274.58/x - Step 3: Cross multiply
239,765,561.58x = 330,876,470.96 × 129,757,274.58 - Step 4: Simplify right side
239,765,561.58x = 42,933,629,093,769,328 - Step 5: Solve for x
x = 42,933,629,093,769,328/239,765,561.58 - Step 6: Final answer
x = 179,065,036.74
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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.