Finding the Fourth Proportional to 165,919,771.20, 248,879,656.80 and 131,282,356.80
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Solution
The fourth proportional to 165,919,771.20, 248,879,656.80 and 131,282,356.80 is: 196,923,535.20
Step by Step Solution
- Step 1: Write the proportion equation
165,919,771.20 : 248,879,656.80 = 131,282,356.80 : x - Step 2: Convert to fraction form
165,919,771.20/248,879,656.80 = 131,282,356.80/x - Step 3: Cross multiply
165,919,771.20x = 248,879,656.80 × 131,282,356.80 - Step 4: Simplify right side
165,919,771.20x = 32,673,507,904,279,148 - Step 5: Solve for x
x = 32,673,507,904,279,148/165,919,771.20 - Step 6: Final answer
x = 196,923,535.20
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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.