Finding the Fourth Proportional to 171,620,405.60, 257,430,608.40 and 157,511,631.20
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Solution
The fourth proportional to 171,620,405.60, 257,430,608.40 and 157,511,631.20 is: 236,267,446.80
Step by Step Solution
- Step 1: Write the proportion equation
171,620,405.60 : 257,430,608.40 = 157,511,631.20 : x - Step 2: Convert to fraction form
171,620,405.60/257,430,608.40 = 157,511,631.20/x - Step 3: Cross multiply
171,620,405.60x = 257,430,608.40 × 157,511,631.20 - Step 4: Simplify right side
171,620,405.60x = 40,548,315,049,892,416 - Step 5: Solve for x
x = 40,548,315,049,892,416/171,620,405.60 - Step 6: Final answer
x = 236,267,446.80
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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.