Finding the Fourth Proportional to 18,359,890.80, 27,539,836.20 and 8,793,952.80
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Solution
The fourth proportional to 18,359,890.80, 27,539,836.20 and 8,793,952.80 is: 13,190,929.20
Step by Step Solution
- Step 1: Write the proportion equation
18,359,890.80 : 27,539,836.20 = 8,793,952.80 : x - Step 2: Convert to fraction form
18,359,890.80/27,539,836.20 = 8,793,952.80/x - Step 3: Cross multiply
18,359,890.80x = 27,539,836.20 × 8,793,952.80 - Step 4: Simplify right side
18,359,890.80x = 242,184,019,662,531.38 - Step 5: Solve for x
x = 242,184,019,662,531.38/18,359,890.80 - Step 6: Final answer
x = 13,190,929.20
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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.