Finding the Fourth Proportional to 266,431,186.80, 399,079,909.80 and 221,081,554.80
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Solution
The fourth proportional to 266,431,186.80, 399,079,909.80 and 221,081,554.80 is: 331,151,949.62
Step by Step Solution
- Step 1: Write the proportion equation
266,431,186.80 : 399,079,909.80 = 221,081,554.80 : x - Step 2: Convert to fraction form
266,431,186.80/399,079,909.80 = 221,081,554.80/x - Step 3: Cross multiply
266,431,186.80x = 399,079,909.80 × 221,081,554.80 - Step 4: Simplify right side
266,431,186.80x = 88,229,206,948,027,760 - Step 5: Solve for x
x = 88,229,206,948,027,760/266,431,186.80 - Step 6: Final answer
x = 331,151,949.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.