Finding the Fourth Proportional to 18,438,884.14, 25,444,993.11 and 10,178,769.12
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Solution
The fourth proportional to 18,438,884.14, 25,444,993.11 and 10,178,769.12 is: 14,046,333.18
Step by Step Solution
- Step 1: Write the proportion equation
18,438,884.14 : 25,444,993.11 = 10,178,769.12 : x - Step 2: Convert to fraction form
18,438,884.14/25,444,993.11 = 10,178,769.12/x - Step 3: Cross multiply
18,438,884.14x = 25,444,993.11 × 10,178,769.12 - Step 4: Simplify right side
18,438,884.14x = 258,998,710,126,680.75 - Step 5: Solve for x
x = 258,998,710,126,680.75/18,438,884.14 - Step 6: Final answer
x = 14,046,333.18
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.