Finding the Fourth Proportional to 5,172,733.46, 7,138,592.76 and 2,880,894.18
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Solution
The fourth proportional to 5,172,733.46, 7,138,592.76 and 2,880,894.18 is: 3,975,756.82
Step by Step Solution
- Step 1: Write the proportion equation
5,172,733.46 : 7,138,592.76 = 2,880,894.18 : x - Step 2: Convert to fraction form
5,172,733.46/7,138,592.76 = 2,880,894.18/x - Step 3: Cross multiply
5,172,733.46x = 7,138,592.76 × 2,880,894.18 - Step 4: Simplify right side
5,172,733.46x = 20,565,530,335,674.14 - Step 5: Solve for x
x = 20,565,530,335,674.14/5,172,733.46 - Step 6: Final answer
x = 3,975,756.82
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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.