Finding the Fourth Proportional to 5,452,342.20, 8,178,513.30 and 4,920,901.20
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Solution
The fourth proportional to 5,452,342.20, 8,178,513.30 and 4,920,901.20 is: 7,381,351.80
Step by Step Solution
- Step 1: Write the proportion equation
5,452,342.20 : 8,178,513.30 = 4,920,901.20 : x - Step 2: Convert to fraction form
5,452,342.20/8,178,513.30 = 4,920,901.20/x - Step 3: Cross multiply
5,452,342.20x = 8,178,513.30 × 4,920,901.20 - Step 4: Simplify right side
5,452,342.20x = 40,245,655,912,185.96 - Step 5: Solve for x
x = 40,245,655,912,185.96/5,452,342.20 - Step 6: Final answer
x = 7,381,351.80
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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.