Finding the Fourth Proportional to 12,173,885.40, 18,259,445.70 and 3,199,344.60
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Solution
The fourth proportional to 12,173,885.40, 18,259,445.70 and 3,199,344.60 is: 4,798,653.60
Step by Step Solution
- Step 1: Write the proportion equation
12,173,885.40 : 18,259,445.70 = 3,199,344.60 : x - Step 2: Convert to fraction form
12,173,885.40/18,259,445.70 = 3,199,344.60/x - Step 3: Cross multiply
12,173,885.40x = 18,259,445.70 × 3,199,344.60 - Step 4: Simplify right side
12,173,885.40x = 58,418,258,999,288.22 - Step 5: Solve for x
x = 58,418,258,999,288.22/12,173,885.40 - Step 6: Final answer
x = 4,798,653.60
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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.