Finding the Fourth Proportional to 20,804,953.05, 31,207,429.58 and 18,285,529.05
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Solution
The fourth proportional to 20,804,953.05, 31,207,429.58 and 18,285,529.05 is: 27,428,293.58
Step by Step Solution
- Step 1: Write the proportion equation
20,804,953.05 : 31,207,429.58 = 18,285,529.05 : x - Step 2: Convert to fraction form
20,804,953.05/31,207,429.58 = 18,285,529.05/x - Step 3: Cross multiply
20,804,953.05x = 31,207,429.58 × 18,285,529.05 - Step 4: Simplify right side
20,804,953.05x = 570,644,360,069,491.62 - Step 5: Solve for x
x = 570,644,360,069,491.62/20,804,953.05 - Step 6: Final answer
x = 27,428,293.58
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1.5x scale
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.