Finding the Fourth Proportional to 168,047,999.20, 252,071,998.80 and 40,397,183.20
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Solution
The fourth proportional to 168,047,999.20, 252,071,998.80 and 40,397,183.20 is: 60,595,774.80
Step by Step Solution
- Step 1: Write the proportion equation
168,047,999.20 : 252,071,998.80 = 40,397,183.20 : x - Step 2: Convert to fraction form
168,047,999.20/252,071,998.80 = 40,397,183.20/x - Step 3: Cross multiply
168,047,999.20x = 252,071,998.80 × 40,397,183.20 - Step 4: Simplify right side
168,047,999.20x = 10,182,998,715,113,782 - Step 5: Solve for x
x = 10,182,998,715,113,782/168,047,999.20 - Step 6: Final answer
x = 60,595,774.80
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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.