Finding the Fourth Proportional to 6,911,694.18, 9,538,367.05 and 3,772,129.76
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Solution
The fourth proportional to 6,911,694.18, 9,538,367.05 and 3,772,129.76 is: 5,205,664.09
Step by Step Solution
- Step 1: Write the proportion equation
6,911,694.18 : 9,538,367.05 = 3,772,129.76 : x - Step 2: Convert to fraction form
6,911,694.18/9,538,367.05 = 3,772,129.76/x - Step 3: Cross multiply
6,911,694.18x = 9,538,367.05 × 3,772,129.76 - Step 4: Simplify right side
6,911,694.18x = 35,979,958,144,555.92 - Step 5: Solve for x
x = 35,979,958,144,555.92/6,911,694.18 - Step 6: Final answer
x = 5,205,664.09
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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.