Finding the Fourth Proportional to 3,127,556.21, 4,316,543.97 and 2,146,689.44
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Solution
The fourth proportional to 3,127,556.21, 4,316,543.97 and 2,146,689.44 is: 2,962,785.87
Step by Step Solution
- Step 1: Write the proportion equation
3,127,556.21 : 4,316,543.97 = 2,146,689.44 : x - Step 2: Convert to fraction form
3,127,556.21/4,316,543.97 = 2,146,689.44/x - Step 3: Cross multiply
3,127,556.21x = 4,316,543.97 × 2,146,689.44 - Step 4: Simplify right side
3,127,556.21x = 9,266,279,357,694.68 - Step 5: Solve for x
x = 9,266,279,357,694.68/3,127,556.21 - Step 6: Final answer
x = 2,962,785.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.