Finding the Fourth Proportional to 193,536,231.80, 290,304,347.70 and 145,760,487.80
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Solution
The fourth proportional to 193,536,231.80, 290,304,347.70 and 145,760,487.80 is: 218,640,731.70
Step by Step Solution
- Step 1: Write the proportion equation
193,536,231.80 : 290,304,347.70 = 145,760,487.80 : x - Step 2: Convert to fraction form
193,536,231.80/290,304,347.70 = 145,760,487.80/x - Step 3: Cross multiply
193,536,231.80x = 290,304,347.70 × 145,760,487.80 - Step 4: Simplify right side
193,536,231.80x = 42,314,903,331,212,808 - Step 5: Solve for x
x = 42,314,903,331,212,808/193,536,231.80 - Step 6: Final answer
x = 218,640,731.70
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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.