Finding the Fourth Proportional to 165,936,361.80, 248,904,542.70 and 79,842,919.80
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Solution
The fourth proportional to 165,936,361.80, 248,904,542.70 and 79,842,919.80 is: 119,764,379.70
Step by Step Solution
- Step 1: Write the proportion equation
165,936,361.80 : 248,904,542.70 = 79,842,919.80 : x - Step 2: Convert to fraction form
165,936,361.80/248,904,542.70 = 79,842,919.80/x - Step 3: Cross multiply
165,936,361.80x = 248,904,542.70 × 79,842,919.80 - Step 4: Simplify right side
165,936,361.80x = 19,873,265,440,651,772 - Step 5: Solve for x
x = 19,873,265,440,651,772/165,936,361.80 - Step 6: Final answer
x = 119,764,379.70
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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.