Finding the Fourth Proportional to 38,054,912.56, 52,515,813.68 and 20,651,257.96
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Solution
The fourth proportional to 38,054,912.56, 52,515,813.68 and 20,651,257.96 is: 28,498,754.62
Step by Step Solution
- Step 1: Write the proportion equation
38,054,912.56 : 52,515,813.68 = 20,651,257.96 : x - Step 2: Convert to fraction form
38,054,912.56/52,515,813.68 = 20,651,257.96/x - Step 3: Cross multiply
38,054,912.56x = 52,515,813.68 × 20,651,257.96 - Step 4: Simplify right side
38,054,912.56x = 1,084,517,615,284,976.88 - Step 5: Solve for x
x = 1,084,517,615,284,976.88/38,054,912.56 - Step 6: Final answer
x = 28,498,754.62
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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.