Finding the Fourth Proportional to 38,839,853.14, 53,598,733.77 and 21,436,198.18
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Solution
The fourth proportional to 38,839,853.14, 53,598,733.77 and 21,436,198.18 is: 29,581,808.02
Step by Step Solution
- Step 1: Write the proportion equation
38,839,853.14 : 53,598,733.77 = 21,436,198.18 : x - Step 2: Convert to fraction form
38,839,853.14/53,598,733.77 = 21,436,198.18/x - Step 3: Cross multiply
38,839,853.14x = 53,598,733.77 × 21,436,198.18 - Step 4: Simplify right side
38,839,853.14x = 1,148,953,079,290,778.50 - Step 5: Solve for x
x = 1,148,953,079,290,778.50/38,839,853.14 - Step 6: Final answer
x = 29,581,808.02
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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.