Finding the Fourth Proportional to 4,752,080.70, 7,128,121.05 and 4,472,144.70
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Solution
The fourth proportional to 4,752,080.70, 7,128,121.05 and 4,472,144.70 is: 6,708,217.05
Step by Step Solution
- Step 1: Write the proportion equation
4,752,080.70 : 7,128,121.05 = 4,472,144.70 : x - Step 2: Convert to fraction form
4,752,080.70/7,128,121.05 = 4,472,144.70/x - Step 3: Cross multiply
4,752,080.70x = 7,128,121.05 × 4,472,144.70 - Step 4: Simplify right side
4,752,080.70x = 31,877,988,774,715.93 - Step 5: Solve for x
x = 31,877,988,774,715.93/4,752,080.70 - Step 6: Final answer
x = 6,708,217.05
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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.