Finding the Fourth Proportional to 3,935,970.54, 5,431,471.52 and 2,193,547.20
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Solution
The fourth proportional to 3,935,970.54, 5,431,471.52 and 2,193,547.20 is: 3,027,001.60
Step by Step Solution
- Step 1: Write the proportion equation
3,935,970.54 : 5,431,471.52 = 2,193,547.20 : x - Step 2: Convert to fraction form
3,935,970.54/5,431,471.52 = 2,193,547.20/x - Step 3: Cross multiply
3,935,970.54x = 5,431,471.52 × 2,193,547.20 - Step 4: Simplify right side
3,935,970.54x = 11,914,189,133,608.01 - Step 5: Solve for x
x = 11,914,189,133,608.01/3,935,970.54 - Step 6: Final answer
x = 3,027,001.60
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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.