Finding the Fourth Proportional to 5,215,163.49, 7,823,866.95 and 1,757,247.30
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Solution
The fourth proportional to 5,215,163.49, 7,823,866.95 and 1,757,247.30 is: 2,636,248.91
Step by Step Solution
- Step 1: Write the proportion equation
5,215,163.49 : 7,823,866.95 = 1,757,247.30 : x - Step 2: Convert to fraction form
5,215,163.49/7,823,866.95 = 1,757,247.30/x - Step 3: Cross multiply
5,215,163.49x = 7,823,866.95 × 1,757,247.30 - Step 4: Simplify right side
5,215,163.49x = 13,748,469,073,446.74 - Step 5: Solve for x
x = 13,748,469,073,446.74/5,215,163.49 - Step 6: Final answer
x = 2,636,248.91
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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.