Finding the Fourth Proportional to 18,592,880.20, 27,889,320.30 and 7,225,947.70
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Solution
The fourth proportional to 18,592,880.20, 27,889,320.30 and 7,225,947.70 is: 10,838,921.55
Step by Step Solution
- Step 1: Write the proportion equation
18,592,880.20 : 27,889,320.30 = 7,225,947.70 : x - Step 2: Convert to fraction form
18,592,880.20/27,889,320.30 = 7,225,947.70/x - Step 3: Cross multiply
18,592,880.20x = 27,889,320.30 × 7,225,947.70 - Step 4: Simplify right side
18,592,880.20x = 201,526,769,876,348.31 - Step 5: Solve for x
x = 201,526,769,876,348.31/18,592,880.20 - Step 6: Final answer
x = 10,838,921.55
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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.