Finding the Fourth Proportional to 1,997,469,051.20, 2,996,203,576.80 and 543,446,475.20
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Solution
The fourth proportional to 1,997,469,051.20, 2,996,203,576.80 and 543,446,475.20 is: 815,169,712.80
Step by Step Solution
- Step 1: Write the proportion equation
1,997,469,051.20 : 2,996,203,576.80 = 543,446,475.20 : x - Step 2: Convert to fraction form
1,997,469,051.20/2,996,203,576.80 = 543,446,475.20/x - Step 3: Cross multiply
1,997,469,051.20x = 2,996,203,576.80 × 543,446,475.20 - Step 4: Simplify right side
1,997,469,051.20x = 1,628,276,272,793,592,832 - Step 5: Solve for x
x = 1,628,276,272,793,592,832/1,997,469,051.20 - Step 6: Final answer
x = 815,169,712.80
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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.