Finding the Fourth Proportional to 3,996,581.19, 5,515,278.14 and 2,161,035.09
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Solution
The fourth proportional to 3,996,581.19, 5,515,278.14 and 2,161,035.09 is: 2,982,226.31
Step by Step Solution
- Step 1: Write the proportion equation
3,996,581.19 : 5,515,278.14 = 2,161,035.09 : x - Step 2: Convert to fraction form
3,996,581.19/5,515,278.14 = 2,161,035.09/x - Step 3: Cross multiply
3,996,581.19x = 5,515,278.14 × 2,161,035.09 - Step 4: Simplify right side
3,996,581.19x = 11,918,709,580,844.76 - Step 5: Solve for x
x = 11,918,709,580,844.76/3,996,581.19 - Step 6: Final answer
x = 2,982,226.31
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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.