Finding the Fourth Proportional to 8,048,639.40, 12,069,459.90 and 2,655,205.80
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Solution
The fourth proportional to 8,048,639.40, 12,069,459.90 and 2,655,205.80 is: 3,981,654.33
Step by Step Solution
- Step 1: Write the proportion equation
8,048,639.40 : 12,069,459.90 = 2,655,205.80 : x - Step 2: Convert to fraction form
8,048,639.40/12,069,459.90 = 2,655,205.80/x - Step 3: Cross multiply
8,048,639.40x = 12,069,459.90 × 2,655,205.80 - Step 4: Simplify right side
8,048,639.40x = 32,046,899,929,347.42 - Step 5: Solve for x
x = 32,046,899,929,347.42/8,048,639.40 - Step 6: Final answer
x = 3,981,654.33
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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.