Finding the Fourth Proportional to 165,888,126.20, 248,832,189.30 and 155,802,135.80
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Solution
The fourth proportional to 165,888,126.20, 248,832,189.30 and 155,802,135.80 is: 233,703,203.70
Step by Step Solution
- Step 1: Write the proportion equation
165,888,126.20 : 248,832,189.30 = 155,802,135.80 : x - Step 2: Convert to fraction form
165,888,126.20/248,832,189.30 = 155,802,135.80/x - Step 3: Cross multiply
165,888,126.20x = 248,832,189.30 × 155,802,135.80 - Step 4: Simplify right side
165,888,126.20x = 38,768,586,548,729,912 - Step 5: Solve for x
x = 38,768,586,548,729,912/165,888,126.20 - Step 6: Final answer
x = 233,703,203.70
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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.