Finding the Fourth Proportional to 193,536,207.80, 290,304,311.70 and 145,760,463.80
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Solution
The fourth proportional to 193,536,207.80, 290,304,311.70 and 145,760,463.80 is: 218,640,695.70
Step by Step Solution
- Step 1: Write the proportion equation
193,536,207.80 : 290,304,311.70 = 145,760,463.80 : x - Step 2: Convert to fraction form
193,536,207.80/290,304,311.70 = 145,760,463.80/x - Step 3: Cross multiply
193,536,207.80x = 290,304,311.70 × 145,760,463.80 - Step 4: Simplify right side
193,536,207.80x = 42,314,891,116,531,768 - Step 5: Solve for x
x = 42,314,891,116,531,768/193,536,207.80 - Step 6: Final answer
x = 218,640,695.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.