Finding the Fourth Proportional to 19,989,554.65, 27,585,767.94 and 11,729,754.58
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Solution
The fourth proportional to 19,989,554.65, 27,585,767.94 and 11,729,754.58 is: 16,187,168.43
Step by Step Solution
- Step 1: Write the proportion equation
19,989,554.65 : 27,585,767.94 = 11,729,754.58 : x - Step 2: Convert to fraction form
19,989,554.65/27,585,767.94 = 11,729,754.58/x - Step 3: Cross multiply
19,989,554.65x = 27,585,767.94 × 11,729,754.58 - Step 4: Simplify right side
19,989,554.65x = 323,574,287,921,182.81 - Step 5: Solve for x
x = 323,574,287,921,182.81/19,989,554.65 - Step 6: Final answer
x = 16,187,168.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.