Finding the Fourth Proportional to 18,391,019.84, 25,380,394.68 and 10,242,257.84
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Solution
The fourth proportional to 18,391,019.84, 25,380,394.68 and 10,242,257.84 is: 14,134,754.28
Step by Step Solution
- Step 1: Write the proportion equation
18,391,019.84 : 25,380,394.68 = 10,242,257.84 : x - Step 2: Convert to fraction form
18,391,019.84/25,380,394.68 = 10,242,257.84/x - Step 3: Cross multiply
18,391,019.84x = 25,380,394.68 × 10,242,257.84 - Step 4: Simplify right side
18,391,019.84x = 259,952,546,393,524.28 - Step 5: Solve for x
x = 259,952,546,393,524.28/18,391,019.84 - Step 6: Final answer
x = 14,134,754.28
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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.