Finding the Fourth Proportional to 225,745,340.45, 311,527,937.84 and 125,288,943.82
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Solution
The fourth proportional to 225,745,340.45, 311,527,937.84 and 125,288,943.82 is: 172,898,391.72
Step by Step Solution
- Step 1: Write the proportion equation
225,745,340.45 : 311,527,937.84 = 125,288,943.82 : x - Step 2: Convert to fraction form
225,745,340.45/311,527,937.84 = 125,288,943.82/x - Step 3: Cross multiply
225,745,340.45x = 311,527,937.84 × 125,288,943.82 - Step 4: Simplify right side
225,745,340.45x = 39,031,006,302,396,208 - Step 5: Solve for x
x = 39,031,006,302,396,208/225,745,340.45 - Step 6: Final answer
x = 172,898,391.72
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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.