Finding the Fourth Proportional to 20,082,562.36, 27,714,119.70 and 10,915,228.60
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Solution
The fourth proportional to 20,082,562.36, 27,714,119.70 and 10,915,228.60 is: 15,063,115.28
Step by Step Solution
- Step 1: Write the proportion equation
20,082,562.36 : 27,714,119.70 = 10,915,228.60 : x - Step 2: Convert to fraction form
20,082,562.36/27,714,119.70 = 10,915,228.60/x - Step 3: Cross multiply
20,082,562.36x = 27,714,119.70 × 10,915,228.60 - Step 4: Simplify right side
20,082,562.36x = 302,505,951,973,263.38 - Step 5: Solve for x
x = 302,505,951,973,263.38/20,082,562.36 - Step 6: Final answer
x = 15,063,115.28
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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.