Finding the Fourth Proportional to 5,172,645.68, 7,138,472.28 and 2,880,806
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Solution
The fourth proportional to 5,172,645.68, 7,138,472.28 and 2,880,806 is: 3,975,635.50
Step by Step Solution
- Step 1: Write the proportion equation
5,172,645.68 : 7,138,472.28 = 2,880,806 : x - Step 2: Convert to fraction form
5,172,645.68/7,138,472.28 = 2,880,806/x - Step 3: Cross multiply
5,172,645.68x = 7,138,472.28 × 2,880,806 - Step 4: Simplify right side
5,172,645.68x = 20,564,553,775,057.68 - Step 5: Solve for x
x = 20,564,553,775,057.68/5,172,645.68 - Step 6: Final answer
x = 3,975,635.50
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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.