Finding the Fourth Proportional to 5,259,471,338.12, 7,258,077,444.38 and 2,848,157,987.09
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Solution
The fourth proportional to 5,259,471,338.12, 7,258,077,444.38 and 2,848,157,987.09 is: 3,930,461,811.68
Step by Step Solution
- Step 1: Write the proportion equation
5,259,471,338.12 : 7,258,077,444.38 = 2,848,157,987.09 : x - Step 2: Convert to fraction form
5,259,471,338.12/7,258,077,444.38 = 2,848,157,987.09/x - Step 3: Cross multiply
5,259,471,338.12x = 7,258,077,444.38 × 2,848,157,987.09 - Step 4: Simplify right side
5,259,471,338.12x = 20,672,151,244,078,141,440 - Step 5: Solve for x
x = 20,672,151,244,078,141,440/5,259,471,338.12 - Step 6: Final answer
x = 3,930,461,811.68
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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.