Finding the Fourth Proportional to 7,576,390.92, 10,455,247.62 and 4,138,647.24
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Solution
The fourth proportional to 7,576,390.92, 10,455,247.62 and 4,138,647.24 is: 5,711,239.32
Step by Step Solution
- Step 1: Write the proportion equation
7,576,390.92 : 10,455,247.62 = 4,138,647.24 : x - Step 2: Convert to fraction form
7,576,390.92/10,455,247.62 = 4,138,647.24/x - Step 3: Cross multiply
7,576,390.92x = 10,455,247.62 × 4,138,647.24 - Step 4: Simplify right side
7,576,390.92x = 43,270,581,706,029.57 - Step 5: Solve for x
x = 43,270,581,706,029.57/7,576,390.92 - Step 6: Final answer
x = 5,711,239.32
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1.5x scale
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.