Finding the Fourth Proportional to 20,222,459,512.73, 27,884,156,785.05 and 15,125,488,930.03
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Solution
The fourth proportional to 20,222,459,512.73, 27,884,156,785.05 and 15,125,488,930.03 is: 20,856,093,419.80
Step by Step Solution
- Step 1: Write the proportion equation
20,222,459,512.73 : 27,884,156,785.05 = 15,125,488,930.03 : x - Step 2: Convert to fraction form
20,222,459,512.73/27,884,156,785.05 = 15,125,488,930.03/x - Step 3: Cross multiply
20,222,459,512.73x = 27,884,156,785.05 × 15,125,488,930.03 - Step 4: Simplify right side
20,222,459,512.73x = 421,761,504,775,595,819,008 - Step 5: Solve for x
x = 421,761,504,775,595,819,008/20,222,459,512.73 - Step 6: Final answer
x = 20,856,093,419.80
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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.