Finding the Fourth Proportional to 4,620,643.20, 6,930,835.20 and 2,096,294.40
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Solution
The fourth proportional to 4,620,643.20, 6,930,835.20 and 2,096,294.40 is: 3,144,382.80
Step by Step Solution
- Step 1: Write the proportion equation
4,620,643.20 : 6,930,835.20 = 2,096,294.40 : x - Step 2: Convert to fraction form
4,620,643.20/6,930,835.20 = 2,096,294.40/x - Step 3: Cross multiply
4,620,643.20x = 6,930,835.20 × 2,096,294.40 - Step 4: Simplify right side
4,620,643.20x = 14,529,071,017,082.88 - Step 5: Solve for x
x = 14,529,071,017,082.88/4,620,643.20 - Step 6: Final answer
x = 3,144,382.80
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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.