Finding the Fourth Proportional to 5,315,871.62, 7,335,429.69 and 2,960,889.09
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Solution
The fourth proportional to 5,315,871.62, 7,335,429.69 and 2,960,889.09 is: 4,085,763.40
Step by Step Solution
- Step 1: Write the proportion equation
5,315,871.62 : 7,335,429.69 = 2,960,889.09 : x - Step 2: Convert to fraction form
5,315,871.62/7,335,429.69 = 2,960,889.09/x - Step 3: Cross multiply
5,315,871.62x = 7,335,429.69 × 2,960,889.09 - Step 4: Simplify right side
5,315,871.62x = 21,719,393,698,197.54 - Step 5: Solve for x
x = 21,719,393,698,197.54/5,315,871.62 - Step 6: Final answer
x = 4,085,763.40
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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.