Finding the Fourth Proportional to 253,138,782.11, 349,310,403.38 and 234,630,463.55
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Solution
The fourth proportional to 253,138,782.11, 349,310,403.38 and 234,630,463.55 is: 323,770,467.66
Step by Step Solution
- Step 1: Write the proportion equation
253,138,782.11 : 349,310,403.38 = 234,630,463.55 : x - Step 2: Convert to fraction form
253,138,782.11/349,310,403.38 = 234,630,463.55/x - Step 3: Cross multiply
253,138,782.11x = 349,310,403.38 × 234,630,463.55 - Step 4: Simplify right side
253,138,782.11x = 81,958,861,864,967,184 - Step 5: Solve for x
x = 81,958,861,864,967,184/253,138,782.11 - Step 6: Final answer
x = 323,770,467.66
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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.