Finding the Fourth Proportional to 4,129,279.40, 6,188,014.20 and 2,865,630.80
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Solution
The fourth proportional to 4,129,279.40, 6,188,014.20 and 2,865,630.80 is: 4,294,348.33
Step by Step Solution
- Step 1: Write the proportion equation
4,129,279.40 : 6,188,014.20 = 2,865,630.80 : x - Step 2: Convert to fraction form
4,129,279.40/6,188,014.20 = 2,865,630.80/x - Step 3: Cross multiply
4,129,279.40x = 6,188,014.20 × 2,865,630.80 - Step 4: Simplify right side
4,129,279.40x = 17,732,564,082,357.36 - Step 5: Solve for x
x = 17,732,564,082,357.36/4,129,279.40 - Step 6: Final answer
x = 4,294,348.33
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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.