Finding the Fourth Proportional to 196,991,998.20, 295,487,997.30 and 132,494,743.80
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Solution
The fourth proportional to 196,991,998.20, 295,487,997.30 and 132,494,743.80 is: 198,742,115.70
Step by Step Solution
- Step 1: Write the proportion equation
196,991,998.20 : 295,487,997.30 = 132,494,743.80 : x - Step 2: Convert to fraction form
196,991,998.20/295,487,997.30 = 132,494,743.80/x - Step 3: Cross multiply
196,991,998.20x = 295,487,997.30 × 132,494,743.80 - Step 4: Simplify right side
196,991,998.20x = 39,150,606,498,238,592 - Step 5: Solve for x
x = 39,150,606,498,238,592/196,991,998.20 - Step 6: Final answer
x = 198,742,115.70
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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.