Finding the Fourth Proportional to 6,912,140.20, 10,371,320.70 and 2,427,634.60
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Solution
The fourth proportional to 6,912,140.20, 10,371,320.70 and 2,427,634.60 is: 3,642,544.31
Step by Step Solution
- Step 1: Write the proportion equation
6,912,140.20 : 10,371,320.70 = 2,427,634.60 : x - Step 2: Convert to fraction form
6,912,140.20/10,371,320.70 = 2,427,634.60/x - Step 3: Cross multiply
6,912,140.20x = 10,371,320.70 × 2,427,634.60 - Step 4: Simplify right side
6,912,140.20x = 25,177,776,979,016.22 - Step 5: Solve for x
x = 25,177,776,979,016.22/6,912,140.20 - Step 6: Final answer
x = 3,642,544.31
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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.