Finding the Fourth Proportional to 27,858,847.68, 38,445,209.64 and 15,635,704.68
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Solution
The fourth proportional to 27,858,847.68, 38,445,209.64 and 15,635,704.68 is: 21,577,272.37
Step by Step Solution
- Step 1: Write the proportion equation
27,858,847.68 : 38,445,209.64 = 15,635,704.68 : x - Step 2: Convert to fraction form
27,858,847.68/38,445,209.64 = 15,635,704.68/x - Step 3: Cross multiply
27,858,847.68x = 38,445,209.64 × 15,635,704.68 - Step 4: Simplify right side
27,858,847.68x = 601,117,944,291,729.12 - Step 5: Solve for x
x = 601,117,944,291,729.12/27,858,847.68 - Step 6: Final answer
x = 21,577,272.37
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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.