Finding the Fourth Proportional to 18,481,769.58, 27,722,701.78 and 7,551,959.60
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Solution
The fourth proportional to 18,481,769.58, 27,722,701.78 and 7,551,959.60 is: 11,327,958.77
Step by Step Solution
- Step 1: Write the proportion equation
18,481,769.58 : 27,722,701.78 = 7,551,959.60 : x - Step 2: Convert to fraction form
18,481,769.58/27,722,701.78 = 7,551,959.60/x - Step 3: Cross multiply
18,481,769.58x = 27,722,701.78 × 7,551,959.60 - Step 4: Simplify right side
18,481,769.58x = 209,360,723,837,359.44 - Step 5: Solve for x
x = 209,360,723,837,359.44/18,481,769.58 - Step 6: Final answer
x = 11,327,958.77
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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.