Finding the Fourth Proportional to 4,750,113.28, 7,125,324.80 and 1,555,422.72
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Solution
The fourth proportional to 4,750,113.28, 7,125,324.80 and 1,555,422.72 is: 2,333,184.80
Step by Step Solution
- Step 1: Write the proportion equation
4,750,113.28 : 7,125,324.80 = 1,555,422.72 : x - Step 2: Convert to fraction form
4,750,113.28/7,125,324.80 = 1,555,422.72/x - Step 3: Cross multiply
4,750,113.28x = 7,125,324.80 × 1,555,422.72 - Step 4: Simplify right side
4,750,113.28x = 11,082,892,081,299.46 - Step 5: Solve for x
x = 11,082,892,081,299.46/4,750,113.28 - Step 6: Final answer
x = 2,333,184.80
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1.5x scale
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.