Finding the Fourth Proportional to 20,890,431,201.97, 28,828,672,265.37 and 11,374,960,168
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Solution
The fourth proportional to 20,890,431,201.97, 28,828,672,265.37 and 11,374,960,168 is: 15,697,378,170.15
Step by Step Solution
- Step 1: Write the proportion equation
20,890,431,201.97 : 28,828,672,265.37 = 11,374,960,168 : x - Step 2: Convert to fraction form
20,890,431,201.97/28,828,672,265.37 = 11,374,960,168/x - Step 3: Cross multiply
20,890,431,201.97x = 28,828,672,265.37 × 11,374,960,168 - Step 4: Simplify right side
20,890,431,201.97x = 327,924,998,714,910,048,256 - Step 5: Solve for x
x = 327,924,998,714,910,048,256/20,890,431,201.97 - Step 6: Final answer
x = 15,697,378,170.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.