Finding the Fourth Proportional to 3,825,364.79, 5,278,602.07 and 2,170,985.07
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Solution
The fourth proportional to 3,825,364.79, 5,278,602.07 and 2,170,985.07 is: 2,995,731.62
Step by Step Solution
- Step 1: Write the proportion equation
3,825,364.79 : 5,278,602.07 = 2,170,985.07 : x - Step 2: Convert to fraction form
3,825,364.79/5,278,602.07 = 2,170,985.07/x - Step 3: Cross multiply
3,825,364.79x = 5,278,602.07 × 2,170,985.07 - Step 4: Simplify right side
3,825,364.79x = 11,459,766,255,148.28 - Step 5: Solve for x
x = 11,459,766,255,148.28/3,825,364.79 - Step 6: Final answer
x = 2,995,731.62
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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.