Finding the Fourth Proportional to 7,328,123.28, 10,992,278.44 and 1,936,727.09
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Solution
The fourth proportional to 7,328,123.28, 10,992,278.44 and 1,936,727.09 is: 2,905,115.34
Step by Step Solution
- Step 1: Write the proportion equation
7,328,123.28 : 10,992,278.44 = 1,936,727.09 : x - Step 2: Convert to fraction form
7,328,123.28/10,992,278.44 = 1,936,727.09/x - Step 3: Cross multiply
7,328,123.28x = 10,992,278.44 × 1,936,727.09 - Step 4: Simplify right side
7,328,123.28x = 21,289,043,393,335.72 - Step 5: Solve for x
x = 21,289,043,393,335.72/7,328,123.28 - Step 6: Final answer
x = 2,905,115.34
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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.