Finding the Fourth Proportional to 18,543,424.19, 27,815,371.11 and 7,025,797.58
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Solution
The fourth proportional to 18,543,424.19, 27,815,371.11 and 7,025,797.58 is: 10,538,785.34
Step by Step Solution
- Step 1: Write the proportion equation
18,543,424.19 : 27,815,371.11 = 7,025,797.58 : x - Step 2: Convert to fraction form
18,543,424.19/27,815,371.11 = 7,025,797.58/x - Step 3: Cross multiply
18,543,424.19x = 27,815,371.11 × 7,025,797.58 - Step 4: Simplify right side
18,543,424.19x = 195,425,166,892,363.06 - Step 5: Solve for x
x = 195,425,166,892,363.06/18,543,424.19 - Step 6: Final answer
x = 10,538,785.34
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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.