Finding the Fourth Proportional to 12,151,921.80, 18,227,882.70 and 3,176,473.80
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Solution
The fourth proportional to 12,151,921.80, 18,227,882.70 and 3,176,473.80 is: 4,764,710.70
Step by Step Solution
- Step 1: Write the proportion equation
12,151,921.80 : 18,227,882.70 = 3,176,473.80 : x - Step 2: Convert to fraction form
12,151,921.80/18,227,882.70 = 3,176,473.80/x - Step 3: Cross multiply
12,151,921.80x = 18,227,882.70 × 3,176,473.80 - Step 4: Simplify right side
12,151,921.80x = 57,900,391,826,023.26 - Step 5: Solve for x
x = 57,900,391,826,023.26/12,151,921.80 - Step 6: Final answer
x = 4,764,710.70
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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.