Finding the Fourth Proportional to 18,591,971.60, 27,943,944.60 and 16,128,534.80
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Solution
The fourth proportional to 18,591,971.60, 27,943,944.60 and 16,128,534.80 is: 24,241,371.09
Step by Step Solution
- Step 1: Write the proportion equation
18,591,971.60 : 27,943,944.60 = 16,128,534.80 : x - Step 2: Convert to fraction form
18,591,971.60/27,943,944.60 = 16,128,534.80/x - Step 3: Cross multiply
18,591,971.60x = 27,943,944.60 × 16,128,534.80 - Step 4: Simplify right side
18,591,971.60x = 450,694,882,930,372.12 - Step 5: Solve for x
x = 450,694,882,930,372.12/18,591,971.60 - Step 6: Final answer
x = 24,241,371.09
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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.