Finding the Fourth Proportional to 328,079,438.80, 492,119,158.20 and 174,646,517.20
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Solution
The fourth proportional to 328,079,438.80, 492,119,158.20 and 174,646,517.20 is: 261,969,775.80
Step by Step Solution
- Step 1: Write the proportion equation
328,079,438.80 : 492,119,158.20 = 174,646,517.20 : x - Step 2: Convert to fraction form
328,079,438.80/492,119,158.20 = 174,646,517.20/x - Step 3: Cross multiply
328,079,438.80x = 492,119,158.20 × 174,646,517.20 - Step 4: Simplify right side
328,079,438.80x = 85,946,897,027,025,808 - Step 5: Solve for x
x = 85,946,897,027,025,808/328,079,438.80 - Step 6: Final answer
x = 261,969,775.80
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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.