Finding the Fourth Proportional to 8,151,415.81, 12,227,581.70 and 2,612,433.49
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Solution
The fourth proportional to 8,151,415.81, 12,227,581.70 and 2,612,433.49 is: 3,918,797.01
Step by Step Solution
- Step 1: Write the proportion equation
8,151,415.81 : 12,227,581.70 = 2,612,433.49 : x - Step 2: Convert to fraction form
8,151,415.81/12,227,581.70 = 2,612,433.49/x - Step 3: Cross multiply
8,151,415.81x = 12,227,581.70 × 2,612,433.49 - Step 4: Simplify right side
8,151,415.81x = 31,943,743,935,346.71 - Step 5: Solve for x
x = 31,943,743,935,346.71/8,151,415.81 - Step 6: Final answer
x = 3,918,797.01
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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.