Finding the Fourth Proportional to 12,113,408.09, 18,170,112.14 and 4,923,257.39
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Solution
The fourth proportional to 12,113,408.09, 18,170,112.14 and 4,923,257.39 is: 7,384,886.09
Step by Step Solution
- Step 1: Write the proportion equation
12,113,408.09 : 18,170,112.14 = 4,923,257.39 : x - Step 2: Convert to fraction form
12,113,408.09/18,170,112.14 = 4,923,257.39/x - Step 3: Cross multiply
12,113,408.09x = 18,170,112.14 × 4,923,257.39 - Step 4: Simplify right side
12,113,408.09x = 89,456,138,845,767.42 - Step 5: Solve for x
x = 89,456,138,845,767.42/12,113,408.09 - Step 6: Final answer
x = 7,384,886.09
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.