Finding the Fourth Proportional to 8,276,728.28, 11,415,414.38 and 5,377,053.42
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Solution
The fourth proportional to 8,276,728.28, 11,415,414.38 and 5,377,053.42 is: 7,416,130.00
Step by Step Solution
- Step 1: Write the proportion equation
8,276,728.28 : 11,415,414.38 = 5,377,053.42 : x - Step 2: Convert to fraction form
8,276,728.28/11,415,414.38 = 5,377,053.42/x - Step 3: Cross multiply
8,276,728.28x = 11,415,414.38 × 5,377,053.42 - Step 4: Simplify right side
8,276,728.28x = 61,381,292,932,696.18 - Step 5: Solve for x
x = 61,381,292,932,696.18/8,276,728.28 - Step 6: Final answer
x = 7,416,130.00
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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.