Finding the Fourth Proportional to 5,638,344.18, 8,457,516.27 and 1,378,461.84
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Solution
The fourth proportional to 5,638,344.18, 8,457,516.27 and 1,378,461.84 is: 2,067,692.76
Step by Step Solution
- Step 1: Write the proportion equation
5,638,344.18 : 8,457,516.27 = 1,378,461.84 : x - Step 2: Convert to fraction form
5,638,344.18/8,457,516.27 = 1,378,461.84/x - Step 3: Cross multiply
5,638,344.18x = 8,457,516.27 × 1,378,461.84 - Step 4: Simplify right side
5,638,344.18x = 11,658,363,439,374.14 - Step 5: Solve for x
x = 11,658,363,439,374.14/5,638,344.18 - Step 6: Final answer
x = 2,067,692.76
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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.