Finding the Fourth Proportional to 165,442,643.20, 248,163,964.80 and 44,274,095.20
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Solution
The fourth proportional to 165,442,643.20, 248,163,964.80 and 44,274,095.20 is: 66,411,142.80
Step by Step Solution
- Step 1: Write the proportion equation
165,442,643.20 : 248,163,964.80 = 44,274,095.20 : x - Step 2: Convert to fraction form
165,442,643.20/248,163,964.80 = 44,274,095.20/x - Step 3: Cross multiply
165,442,643.20x = 248,163,964.80 × 44,274,095.20 - Step 4: Simplify right side
165,442,643.20x = 10,987,235,002,764,650 - Step 5: Solve for x
x = 10,987,235,002,764,650/165,442,643.20 - Step 6: Final answer
x = 66,411,142.80
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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.