Finding the Fourth Proportional to 5,218,630.28, 7,201,768.26 and 2,895,564.84
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Solution
The fourth proportional to 5,218,630.28, 7,201,768.26 and 2,895,564.84 is: 3,995,911.92
Step by Step Solution
- Step 1: Write the proportion equation
5,218,630.28 : 7,201,768.26 = 2,895,564.84 : x - Step 2: Convert to fraction form
5,218,630.28/7,201,768.26 = 2,895,564.84/x - Step 3: Cross multiply
5,218,630.28x = 7,201,768.26 × 2,895,564.84 - Step 4: Simplify right side
5,218,630.28x = 20,853,186,959,483.98 - Step 5: Solve for x
x = 20,853,186,959,483.98/5,218,630.28 - Step 6: Final answer
x = 3,995,911.92
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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.