Finding the Fourth Proportional to 5,381,200.62, 7,421,857.74 and 3,447,642.24
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Solution
The fourth proportional to 5,381,200.62, 7,421,857.74 and 3,447,642.24 is: 4,755,055.99
Step by Step Solution
- Step 1: Write the proportion equation
5,381,200.62 : 7,421,857.74 = 3,447,642.24 : x - Step 2: Convert to fraction form
5,381,200.62/7,421,857.74 = 3,447,642.24/x - Step 3: Cross multiply
5,381,200.62x = 7,421,857.74 × 3,447,642.24 - Step 4: Simplify right side
5,381,200.62x = 25,587,910,243,694.94 - Step 5: Solve for x
x = 25,587,910,243,694.94/5,381,200.62 - Step 6: Final answer
x = 4,755,055.99
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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.