Finding the Fourth Proportional to 7,928,011,451.26, 10,940,863,155.84 and 4,311,246,720.52
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Solution
The fourth proportional to 7,928,011,451.26, 10,940,863,155.84 and 4,311,246,720.52 is: 5,949,633,232.78
Step by Step Solution
- Step 1: Write the proportion equation
7,928,011,451.26 : 10,940,863,155.84 = 4,311,246,720.52 : x - Step 2: Convert to fraction form
7,928,011,451.26/10,940,863,155.84 = 4,311,246,720.52/x - Step 3: Cross multiply
7,928,011,451.26x = 10,940,863,155.84 × 4,311,246,720.52 - Step 4: Simplify right side
7,928,011,451.26x = 47,168,760,400,273,301,504 - Step 5: Solve for x
x = 47,168,760,400,273,301,504/7,928,011,451.26 - Step 6: Final answer
x = 5,949,633,232.78
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1.5x scale
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.