Finding the Fourth Proportional to 7,328,620.80, 10,995,235.20 and 3,542,227.20
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Solution
The fourth proportional to 7,328,620.80, 10,995,235.20 and 3,542,227.20 is: 5,314,454.42
Step by Step Solution
- Step 1: Write the proportion equation
7,328,620.80 : 10,995,235.20 = 3,542,227.20 : x - Step 2: Convert to fraction form
7,328,620.80/10,995,235.20 = 3,542,227.20/x - Step 3: Cross multiply
7,328,620.80x = 10,995,235.20 × 3,542,227.20 - Step 4: Simplify right side
7,328,620.80x = 38,947,621,195,837.44 - Step 5: Solve for x
x = 38,947,621,195,837.44/7,328,620.80 - Step 6: Final answer
x = 5,314,454.42
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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.