Finding the Fourth Proportional to 215,693,197.20, 323,507,904.12 and 79,346,694.24
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Solution
The fourth proportional to 215,693,197.20, 323,507,904.12 and 79,346,694.24 is: 119,008,309.42
Step by Step Solution
- Step 1: Write the proportion equation
215,693,197.20 : 323,507,904.12 = 79,346,694.24 : x - Step 2: Convert to fraction form
215,693,197.20/323,507,904.12 = 79,346,694.24/x - Step 3: Cross multiply
215,693,197.20x = 323,507,904.12 × 79,346,694.24 - Step 4: Simplify right side
215,693,197.20x = 25,669,282,752,432,876 - Step 5: Solve for x
x = 25,669,282,752,432,876/215,693,197.20 - Step 6: Final answer
x = 119,008,309.42
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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.