Finding the Fourth Proportional to 32,389,276.80, 48,583,915.20 and 13,213,660.80
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Solution
The fourth proportional to 32,389,276.80, 48,583,915.20 and 13,213,660.80 is: 19,820,491.20
Step by Step Solution
- Step 1: Write the proportion equation
32,389,276.80 : 48,583,915.20 = 13,213,660.80 : x - Step 2: Convert to fraction form
32,389,276.80/48,583,915.20 = 13,213,660.80/x - Step 3: Cross multiply
32,389,276.80x = 48,583,915.20 × 13,213,660.80 - Step 4: Simplify right side
32,389,276.80x = 641,971,375,788,764.25 - Step 5: Solve for x
x = 641,971,375,788,764.25/32,389,276.80 - Step 6: Final answer
x = 19,820,491.20
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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.