Finding the Fourth Proportional to 10,245,124.32, 14,138,276.40 and 5,661,445.68
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Solution
The fourth proportional to 10,245,124.32, 14,138,276.40 and 5,661,445.68 is: 7,812,797.71
Step by Step Solution
- Step 1: Write the proportion equation
10,245,124.32 : 14,138,276.40 = 5,661,445.68 : x - Step 2: Convert to fraction form
10,245,124.32/14,138,276.40 = 5,661,445.68/x - Step 3: Cross multiply
10,245,124.32x = 14,138,276.40 × 5,661,445.68 - Step 4: Simplify right side
10,245,124.32x = 80,043,083,847,425.95 - Step 5: Solve for x
x = 80,043,083,847,425.95/10,245,124.32 - Step 6: Final answer
x = 7,812,797.71
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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.