Finding the Fourth Proportional to 38,690,751.97, 53,393,661.50 and 21,049,754.79
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Solution
The fourth proportional to 38,690,751.97, 53,393,661.50 and 21,049,754.79 is: 29,048,892.17
Step by Step Solution
- Step 1: Write the proportion equation
38,690,751.97 : 53,393,661.50 = 21,049,754.79 : x - Step 2: Convert to fraction form
38,690,751.97/53,393,661.50 = 21,049,754.79/x - Step 3: Cross multiply
38,690,751.97x = 53,393,661.50 × 21,049,754.79 - Step 4: Simplify right side
38,690,751.97x = 1,123,923,482,010,241 - Step 5: Solve for x
x = 1,123,923,482,010,241/38,690,751.97 - Step 6: Final answer
x = 29,048,892.17
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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.