Finding the Fourth Proportional to 10,198,158.40, 15,261,808.20 and 9,347,852.80
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Solution
The fourth proportional to 10,198,158.40, 15,261,808.20 and 9,347,852.80 is: 13,989,303.84
Step by Step Solution
- Step 1: Write the proportion equation
10,198,158.40 : 15,261,808.20 = 9,347,852.80 : x - Step 2: Convert to fraction form
10,198,158.40/15,261,808.20 = 9,347,852.80/x - Step 3: Cross multiply
10,198,158.40x = 15,261,808.20 × 9,347,852.80 - Step 4: Simplify right side
10,198,158.40x = 142,665,136,515,432.97 - Step 5: Solve for x
x = 142,665,136,515,432.97/10,198,158.40 - Step 6: Final answer
x = 13,989,303.84
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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.