Finding the Fourth Proportional to 10,618,884.12, 14,654,074.62 and 5,789,988.12
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Solution
The fourth proportional to 10,618,884.12, 14,654,074.62 and 5,789,988.12 is: 7,990,191.53
Step by Step Solution
- Step 1: Write the proportion equation
10,618,884.12 : 14,654,074.62 = 5,789,988.12 : x - Step 2: Convert to fraction form
10,618,884.12/14,654,074.62 = 5,789,988.12/x - Step 3: Cross multiply
10,618,884.12x = 14,654,074.62 × 5,789,988.12 - Step 4: Simplify right side
10,618,884.12x = 84,846,917,959,393.52 - Step 5: Solve for x
x = 84,846,917,959,393.52/10,618,884.12 - Step 6: Final answer
x = 7,990,191.53
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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.