Finding the Fourth Proportional to 11,195,137.80, 15,449,258.55 and 6,300,359.92
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Solution
The fourth proportional to 11,195,137.80, 15,449,258.55 and 6,300,359.92 is: 8,694,478.89
Step by Step Solution
- Step 1: Write the proportion equation
11,195,137.80 : 15,449,258.55 = 6,300,359.92 : x - Step 2: Convert to fraction form
11,195,137.80/15,449,258.55 = 6,300,359.92/x - Step 3: Cross multiply
11,195,137.80x = 15,449,258.55 × 6,300,359.92 - Step 4: Simplify right side
11,195,137.80x = 97,335,889,351,919.09 - Step 5: Solve for x
x = 97,335,889,351,919.09/11,195,137.80 - Step 6: Final answer
x = 8,694,478.89
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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.