Finding the Fourth Proportional to 8,276,728.16, 11,415,414.20 and 5,377,053.31
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Solution
The fourth proportional to 8,276,728.16, 11,415,414.20 and 5,377,053.31 is: 7,416,129.83
Step by Step Solution
- Step 1: Write the proportion equation
8,276,728.16 : 11,415,414.20 = 5,377,053.31 : x - Step 2: Convert to fraction form
8,276,728.16/11,415,414.20 = 5,377,053.31/x - Step 3: Cross multiply
8,276,728.16x = 11,415,414.20 × 5,377,053.31 - Step 4: Simplify right side
8,276,728.16x = 61,381,290,653,707.20 - Step 5: Solve for x
x = 61,381,290,653,707.20/8,276,728.16 - Step 6: Final answer
x = 7,416,129.83
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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.