Finding the Fourth Proportional to 363,967,489.12, 545,951,235.12 and 121,630,393.12
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Solution
The fourth proportional to 363,967,489.12, 545,951,235.12 and 121,630,393.12 is: 182,445,590.16
Step by Step Solution
- Step 1: Write the proportion equation
363,967,489.12 : 545,951,235.12 = 121,630,393.12 : x - Step 2: Convert to fraction form
363,967,489.12/545,951,235.12 = 121,630,393.12/x - Step 3: Cross multiply
363,967,489.12x = 545,951,235.12 × 121,630,393.12 - Step 4: Simplify right side
363,967,489.12x = 66,404,263,351,995,152 - Step 5: Solve for x
x = 66,404,263,351,995,152/363,967,489.12 - Step 6: Final answer
x = 182,445,590.16
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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.