Finding the Fourth Proportional to 2,021,121.45, 3,031,682.18 and 1,941,405.30
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Solution
The fourth proportional to 2,021,121.45, 3,031,682.18 and 1,941,405.30 is: 2,912,107.95
Step by Step Solution
- Step 1: Write the proportion equation
2,021,121.45 : 3,031,682.18 = 1,941,405.30 : x - Step 2: Convert to fraction form
2,021,121.45/3,031,682.18 = 1,941,405.30/x - Step 3: Cross multiply
2,021,121.45x = 3,031,682.18 × 1,941,405.30 - Step 4: Simplify right side
2,021,121.45x = 5,885,723,842,460.53 - Step 5: Solve for x
x = 5,885,723,842,460.53/2,021,121.45 - Step 6: Final answer
x = 2,912,107.95
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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.