Finding the Fourth Proportional to 11,438,939.68, 17,158,399.84 and 2,919,275.52
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Solution
The fourth proportional to 11,438,939.68, 17,158,399.84 and 2,919,275.52 is: 4,378,910.81
Step by Step Solution
- Step 1: Write the proportion equation
11,438,939.68 : 17,158,399.84 = 2,919,275.52 : x - Step 2: Convert to fraction form
11,438,939.68/17,158,399.84 = 2,919,275.52/x - Step 3: Cross multiply
11,438,939.68x = 17,158,399.84 × 2,919,275.52 - Step 4: Simplify right side
11,438,939.68x = 50,090,096,615,283.91 - Step 5: Solve for x
x = 50,090,096,615,283.91/11,438,939.68 - Step 6: Final answer
x = 4,378,910.81
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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.