Finding the Fourth Proportional to 38,839,852.14, 53,598,732.39 and 21,436,197.18
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Solution
The fourth proportional to 38,839,852.14, 53,598,732.39 and 21,436,197.18 is: 29,581,806.64
Step by Step Solution
- Step 1: Write the proportion equation
38,839,852.14 : 53,598,732.39 = 21,436,197.18 : x - Step 2: Convert to fraction form
38,839,852.14/53,598,732.39 = 21,436,197.18/x - Step 3: Cross multiply
38,839,852.14x = 53,598,732.39 × 21,436,197.18 - Step 4: Simplify right side
38,839,852.14x = 1,148,952,996,110,092.75 - Step 5: Solve for x
x = 1,148,952,996,110,092.75/38,839,852.14 - Step 6: Final answer
x = 29,581,806.64
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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.