Finding the Fourth Proportional to 7,163,922.80, 10,745,884.20 and 6,616,492.40
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Solution
The fourth proportional to 7,163,922.80, 10,745,884.20 and 6,616,492.40 is: 9,924,738.60
Step by Step Solution
- Step 1: Write the proportion equation
7,163,922.80 : 10,745,884.20 = 6,616,492.40 : x - Step 2: Convert to fraction form
7,163,922.80/10,745,884.20 = 6,616,492.40/x - Step 3: Cross multiply
7,163,922.80x = 10,745,884.20 × 6,616,492.40 - Step 4: Simplify right side
7,163,922.80x = 71,100,061,140,580.08 - Step 5: Solve for x
x = 71,100,061,140,580.08/7,163,922.80 - Step 6: Final answer
x = 9,924,738.60
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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.