Finding the Fourth Proportional to 11,450,925,275.36, 17,172,134,985.12 and 3,987,591,470.24
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Solution
The fourth proportional to 11,450,925,275.36, 17,172,134,985.12 and 3,987,591,470.24 is: 5,979,906,194.99
Step by Step Solution
- Step 1: Write the proportion equation
11,450,925,275.36 : 17,172,134,985.12 = 3,987,591,470.24 : x - Step 2: Convert to fraction form
11,450,925,275.36/17,172,134,985.12 = 3,987,591,470.24/x - Step 3: Cross multiply
11,450,925,275.36x = 17,172,134,985.12 × 3,987,591,470.24 - Step 4: Simplify right side
11,450,925,275.36x = 68,475,458,992,474,398,720 - Step 5: Solve for x
x = 68,475,458,992,474,398,720/11,450,925,275.36 - Step 6: Final answer
x = 5,979,906,194.99
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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.