Finding the Fourth Proportional to 19,945,072.68, 27,518,065.38 and 12,202,042.92
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Solution
The fourth proportional to 19,945,072.68, 27,518,065.38 and 12,202,042.92 is: 16,835,065.99
Step by Step Solution
- Step 1: Write the proportion equation
19,945,072.68 : 27,518,065.38 = 12,202,042.92 : x - Step 2: Convert to fraction form
19,945,072.68/27,518,065.38 = 12,202,042.92/x - Step 3: Cross multiply
19,945,072.68x = 27,518,065.38 × 12,202,042.92 - Step 4: Simplify right side
19,945,072.68x = 335,776,614,842,126.12 - Step 5: Solve for x
x = 335,776,614,842,126.12/19,945,072.68 - Step 6: Final answer
x = 16,835,065.99
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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.