Finding the Fourth Proportional to 3,745,031.92, 5,173,434.84 and 2,980,106.80
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Solution
The fourth proportional to 3,745,031.92, 5,173,434.84 and 2,980,106.80 is: 4,116,757.53
Step by Step Solution
- Step 1: Write the proportion equation
3,745,031.92 : 5,173,434.84 = 2,980,106.80 : x - Step 2: Convert to fraction form
3,745,031.92/5,173,434.84 = 2,980,106.80/x - Step 3: Cross multiply
3,745,031.92x = 5,173,434.84 × 2,980,106.80 - Step 4: Simplify right side
3,745,031.92x = 15,417,388,346,040.91 - Step 5: Solve for x
x = 15,417,388,346,040.91/3,745,031.92 - Step 6: Final answer
x = 4,116,757.53
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1.5x scale
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.