Finding the Fourth Proportional to 2,021,102.11, 2,789,127.24 and 1,295,952.70
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Solution
The fourth proportional to 2,021,102.11, 2,789,127.24 and 1,295,952.70 is: 1,788,418.78
Step by Step Solution
- Step 1: Write the proportion equation
2,021,102.11 : 2,789,127.24 = 1,295,952.70 : x - Step 2: Convert to fraction form
2,021,102.11/2,789,127.24 = 1,295,952.70/x - Step 3: Cross multiply
2,021,102.11x = 2,789,127.24 × 1,295,952.70 - Step 4: Simplify right side
2,021,102.11x = 3,614,576,977,321.55 - Step 5: Solve for x
x = 3,614,576,977,321.55/2,021,102.11 - Step 6: Final answer
x = 1,788,418.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.