Finding the Fourth Proportional to 11,827,543.80, 16,321,915.36 and 6,866,445.48
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Solution
The fourth proportional to 11,827,543.80, 16,321,915.36 and 6,866,445.48 is: 9,475,639.56
Step by Step Solution
- Step 1: Write the proportion equation
11,827,543.80 : 16,321,915.36 = 6,866,445.48 : x - Step 2: Convert to fraction form
11,827,543.80/16,321,915.36 = 6,866,445.48/x - Step 3: Cross multiply
11,827,543.80x = 16,321,915.36 × 6,866,445.48 - Step 4: Simplify right side
11,827,543.80x = 112,073,541,948,614.58 - Step 5: Solve for x
x = 112,073,541,948,614.58/11,827,543.80 - Step 6: Final answer
x = 9,475,639.56
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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.