Finding the Fourth Proportional to 8,972,080.80, 13,458,121.20 and 4,425,307.80
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Solution
The fourth proportional to 8,972,080.80, 13,458,121.20 and 4,425,307.80 is: 6,637,961.70
Step by Step Solution
- Step 1: Write the proportion equation
8,972,080.80 : 13,458,121.20 = 4,425,307.80 : x - Step 2: Convert to fraction form
8,972,080.80/13,458,121.20 = 4,425,307.80/x - Step 3: Cross multiply
8,972,080.80x = 13,458,121.20 × 4,425,307.80 - Step 4: Simplify right side
8,972,080.80x = 59,556,328,719,705.35 - Step 5: Solve for x
x = 59,556,328,719,705.35/8,972,080.80 - Step 6: Final answer
x = 6,637,961.70
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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.