Finding the Fourth Proportional to 10,445,286.08, 15,662,889.60 and 4,378,388.80
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Solution
The fourth proportional to 10,445,286.08, 15,662,889.60 and 4,378,388.80 is: 6,565,470.77
Step by Step Solution
- Step 1: Write the proportion equation
10,445,286.08 : 15,662,889.60 = 4,378,388.80 : x - Step 2: Convert to fraction form
10,445,286.08/15,662,889.60 = 4,378,388.80/x - Step 3: Cross multiply
10,445,286.08x = 15,662,889.60 × 4,378,388.80 - Step 4: Simplify right side
10,445,286.08x = 68,578,220,400,276.48 - Step 5: Solve for x
x = 68,578,220,400,276.48/10,445,286.08 - Step 6: Final answer
x = 6,565,470.77
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.