Finding the Fourth Proportional to 7,034,120.28, 9,708,910.92 and 3,980,106
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Solution
The fourth proportional to 7,034,120.28, 9,708,910.92 and 3,980,106 is: 5,493,578.88
Step by Step Solution
- Step 1: Write the proportion equation
7,034,120.28 : 9,708,910.92 = 3,980,106 : x - Step 2: Convert to fraction form
7,034,120.28/9,708,910.92 = 3,980,106/x - Step 3: Cross multiply
7,034,120.28x = 9,708,910.92 × 3,980,106 - Step 4: Simplify right side
7,034,120.28x = 38,642,494,606,157.52 - Step 5: Solve for x
x = 38,642,494,606,157.52/7,034,120.28 - Step 6: Final answer
x = 5,493,578.88
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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.