Finding the Fourth Proportional to 18,538,888.60, 27,772,463.67 and 10,427,218.12
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Solution
The fourth proportional to 18,538,888.60, 27,772,463.67 and 10,427,218.12 is: 15,620,652.49
Step by Step Solution
- Step 1: Write the proportion equation
18,538,888.60 : 27,772,463.67 = 10,427,218.12 : x - Step 2: Convert to fraction form
18,538,888.60/27,772,463.67 = 10,427,218.12/x - Step 3: Cross multiply
18,538,888.60x = 27,772,463.67 × 10,427,218.12 - Step 4: Simplify right side
18,538,888.60x = 289,589,536,416,865.69 - Step 5: Solve for x
x = 289,589,536,416,865.69/18,538,888.60 - Step 6: Final answer
x = 15,620,652.49
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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.