Finding the Fourth Proportional to 21,633,729.14, 32,454,923.94 and 7,986,958.49
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Solution
The fourth proportional to 21,633,729.14, 32,454,923.94 and 7,986,958.49 is: 11,982,036.42
Step by Step Solution
- Step 1: Write the proportion equation
21,633,729.14 : 32,454,923.94 = 7,986,958.49 : x - Step 2: Convert to fraction form
21,633,729.14/32,454,923.94 = 7,986,958.49/x - Step 3: Cross multiply
21,633,729.14x = 32,454,923.94 × 7,986,958.49 - Step 4: Simplify right side
21,633,729.14x = 259,216,130,386,024.56 - Step 5: Solve for x
x = 259,216,130,386,024.56/21,633,729.14 - Step 6: Final answer
x = 11,982,036.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.