Finding the Fourth Proportional to 13,146,231.60, 19,720,883.40 and 4,171,690.80
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Solution
The fourth proportional to 13,146,231.60, 19,720,883.40 and 4,171,690.80 is: 6,258,023.62
Step by Step Solution
- Step 1: Write the proportion equation
13,146,231.60 : 19,720,883.40 = 4,171,690.80 : x - Step 2: Convert to fraction form
13,146,231.60/19,720,883.40 = 4,171,690.80/x - Step 3: Cross multiply
13,146,231.60x = 19,720,883.40 × 4,171,690.80 - Step 4: Simplify right side
13,146,231.60x = 82,269,427,847,652.70 - Step 5: Solve for x
x = 82,269,427,847,652.70/13,146,231.60 - Step 6: Final answer
x = 6,258,023.62
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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.