Finding the Fourth Proportional to 5,326,288.20, 7,984,766.70 and 3,197,219.40
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Solution
The fourth proportional to 5,326,288.20, 7,984,766.70 and 3,197,219.40 is: 4,793,028.47
Step by Step Solution
- Step 1: Write the proportion equation
5,326,288.20 : 7,984,766.70 = 3,197,219.40 : x - Step 2: Convert to fraction form
5,326,288.20/7,984,766.70 = 3,197,219.40/x - Step 3: Cross multiply
5,326,288.20x = 7,984,766.70 × 3,197,219.40 - Step 4: Simplify right side
5,326,288.20x = 25,529,050,997,713.98 - Step 5: Solve for x
x = 25,529,050,997,713.98/5,326,288.20 - Step 6: Final answer
x = 4,793,028.47
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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.