Finding the Fourth Proportional to 5,639,748.84, 7,782,863.27 and 3,061,431.36
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Solution
The fourth proportional to 5,639,748.84, 7,782,863.27 and 3,061,431.36 is: 4,224,780.63
Step by Step Solution
- Step 1: Write the proportion equation
5,639,748.84 : 7,782,863.27 = 3,061,431.36 : x - Step 2: Convert to fraction form
5,639,748.84/7,782,863.27 = 3,061,431.36/x - Step 3: Cross multiply
5,639,748.84x = 7,782,863.27 × 3,061,431.36 - Step 4: Simplify right side
5,639,748.84x = 23,826,701,670,062.99 - Step 5: Solve for x
x = 23,826,701,670,062.99/5,639,748.84 - Step 6: Final answer
x = 4,224,780.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.