Finding the Fourth Proportional to 288,451,261.65, 398,199,989.87 and 193,245,703.12
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Solution
The fourth proportional to 288,451,261.65, 398,199,989.87 and 193,245,703.12 is: 266,771,019.08
Step by Step Solution
- Step 1: Write the proportion equation
288,451,261.65 : 398,199,989.87 = 193,245,703.12 : x - Step 2: Convert to fraction form
288,451,261.65/398,199,989.87 = 193,245,703.12/x - Step 3: Cross multiply
288,451,261.65x = 398,199,989.87 × 193,245,703.12 - Step 4: Simplify right side
288,451,261.65x = 76,950,437,024,805,024 - Step 5: Solve for x
x = 76,950,437,024,805,024/288,451,261.65 - Step 6: Final answer
x = 266,771,019.08
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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.