Finding the Fourth Proportional to 18,955,944.12, 26,131,995.18 and 13,513,988.28
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Solution
The fourth proportional to 18,955,944.12, 26,131,995.18 and 13,513,988.28 is: 18,629,907.03
Step by Step Solution
- Step 1: Write the proportion equation
18,955,944.12 : 26,131,995.18 = 13,513,988.28 : x - Step 2: Convert to fraction form
18,955,944.12/26,131,995.18 = 13,513,988.28/x - Step 3: Cross multiply
18,955,944.12x = 26,131,995.18 × 13,513,988.28 - Step 4: Simplify right side
18,955,944.12x = 353,147,476,595,536.50 - Step 5: Solve for x
x = 353,147,476,595,536.50/18,955,944.12 - Step 6: Final answer
x = 18,629,907.03
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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.