Finding the Fourth Proportional to 5,204,812.24, 7,182,639.84 and 2,912,972.80
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Solution
The fourth proportional to 5,204,812.24, 7,182,639.84 and 2,912,972.80 is: 4,019,901.88
Step by Step Solution
- Step 1: Write the proportion equation
5,204,812.24 : 7,182,639.84 = 2,912,972.80 : x - Step 2: Convert to fraction form
5,204,812.24/7,182,639.84 = 2,912,972.80/x - Step 3: Cross multiply
5,204,812.24x = 7,182,639.84 × 2,912,972.80 - Step 4: Simplify right side
5,204,812.24x = 20,922,834,486,116.35 - Step 5: Solve for x
x = 20,922,834,486,116.35/5,204,812.24 - Step 6: Final answer
x = 4,019,901.88
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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.