Finding the Fourth Proportional to 8,236,471.84, 12,347,359.36 and 4,190,696.80
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Solution
The fourth proportional to 8,236,471.84, 12,347,359.36 and 4,190,696.80 is: 6,282,306.35
Step by Step Solution
- Step 1: Write the proportion equation
8,236,471.84 : 12,347,359.36 = 4,190,696.80 : x - Step 2: Convert to fraction form
8,236,471.84/12,347,359.36 = 4,190,696.80/x - Step 3: Cross multiply
8,236,471.84x = 12,347,359.36 × 4,190,696.80 - Step 4: Simplify right side
8,236,471.84x = 51,744,039,358,402.05 - Step 5: Solve for x
x = 51,744,039,358,402.05/8,236,471.84 - Step 6: Final answer
x = 6,282,306.35
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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.