Finding the Fourth Proportional to 4,752,811.80, 7,129,152.90 and 1,558,042.20
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Solution
The fourth proportional to 4,752,811.80, 7,129,152.90 and 1,558,042.20 is: 2,337,042.06
Step by Step Solution
- Step 1: Write the proportion equation
4,752,811.80 : 7,129,152.90 = 1,558,042.20 : x - Step 2: Convert to fraction form
4,752,811.80/7,129,152.90 = 1,558,042.20/x - Step 3: Cross multiply
4,752,811.80x = 7,129,152.90 × 1,558,042.20 - Step 4: Simplify right side
4,752,811.80x = 11,107,521,068,452.38 - Step 5: Solve for x
x = 11,107,521,068,452.38/4,752,811.80 - Step 6: Final answer
x = 2,337,042.06
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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.