Finding the Fourth Proportional to 5,519,787.40, 8,263,934.70 and 4,889,931.40
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Solution
The fourth proportional to 5,519,787.40, 8,263,934.70 and 4,889,931.40 is: 7,320,947.50
Step by Step Solution
- Step 1: Write the proportion equation
5,519,787.40 : 8,263,934.70 = 4,889,931.40 : x - Step 2: Convert to fraction form
5,519,787.40/8,263,934.70 = 4,889,931.40/x - Step 3: Cross multiply
5,519,787.40x = 8,263,934.70 × 4,889,931.40 - Step 4: Simplify right side
5,519,787.40x = 40,410,073,777,079.59 - Step 5: Solve for x
x = 40,410,073,777,079.59/5,519,787.40 - Step 6: Final answer
x = 7,320,947.50
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1.5x scale
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.