Finding the Fourth Proportional to 2,991,538.44, 4,123,351.98 and 2,119,253.49
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Solution
The fourth proportional to 2,991,538.44, 4,123,351.98 and 2,119,253.49 is: 2,921,048.23
Step by Step Solution
- Step 1: Write the proportion equation
2,991,538.44 : 4,123,351.98 = 2,119,253.49 : x - Step 2: Convert to fraction form
2,991,538.44/4,123,351.98 = 2,119,253.49/x - Step 3: Cross multiply
2,991,538.44x = 4,123,351.98 × 2,119,253.49 - Step 4: Simplify right side
2,991,538.44x = 8,738,428,074,113.41 - Step 5: Solve for x
x = 8,738,428,074,113.41/2,991,538.44 - Step 6: Final answer
x = 2,921,048.23
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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.