Finding the Fourth Proportional to 11,568,168,949, 15,962,957,653.62 and 6,487,739,134.60
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Solution
The fourth proportional to 11,568,168,949, 15,962,957,653.62 and 6,487,739,134.60 is: 8,952,454,405.70
Step by Step Solution
- Step 1: Write the proportion equation
11,568,168,949 : 15,962,957,653.62 = 6,487,739,134.60 : x - Step 2: Convert to fraction form
11,568,168,949/15,962,957,653.62 = 6,487,739,134.60/x - Step 3: Cross multiply
11,568,168,949x = 15,962,957,653.62 × 6,487,739,134.60 - Step 4: Simplify right side
11,568,168,949x = 103,563,505,073,353,080,832 - Step 5: Solve for x
x = 103,563,505,073,353,080,832/11,568,168,949 - Step 6: Final answer
x = 8,952,454,405.70
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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.