Finding the Fourth Proportional to 197,278,321.65, 272,244,613.44 and 109,178,394.63
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Solution
The fourth proportional to 197,278,321.65, 272,244,613.44 and 109,178,394.63 is: 150,666,477.66
Step by Step Solution
- Step 1: Write the proportion equation
197,278,321.65 : 272,244,613.44 = 109,178,394.63 : x - Step 2: Convert to fraction form
197,278,321.65/272,244,613.44 = 109,178,394.63/x - Step 3: Cross multiply
197,278,321.65x = 272,244,613.44 × 109,178,394.63 - Step 4: Simplify right side
197,278,321.65x = 29,723,229,842,044,120 - Step 5: Solve for x
x = 29,723,229,842,044,120/197,278,321.65 - Step 6: Final answer
x = 150,666,477.66
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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.