Finding the Fourth Proportional to 10,420,186.14, 15,611,383.26 and 10,193,437.98
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Solution
The fourth proportional to 10,420,186.14, 15,611,383.26 and 10,193,437.98 is: 15,271,672.20
Step by Step Solution
- Step 1: Write the proportion equation
10,420,186.14 : 15,611,383.26 = 10,193,437.98 : x - Step 2: Convert to fraction form
10,420,186.14/15,611,383.26 = 10,193,437.98/x - Step 3: Cross multiply
10,420,186.14x = 15,611,383.26 × 10,193,437.98 - Step 4: Simplify right side
10,420,186.14x = 159,133,667,042,820.22 - Step 5: Solve for x
x = 159,133,667,042,820.22/10,420,186.14 - Step 6: Final answer
x = 15,271,672.20
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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.