Finding the Fourth Proportional to 8,499,877.14, 11,728,843.66 and 5,190,508.74
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Solution
The fourth proportional to 8,499,877.14, 11,728,843.66 and 5,190,508.74 is: 7,162,299.47
Step by Step Solution
- Step 1: Write the proportion equation
8,499,877.14 : 11,728,843.66 = 5,190,508.74 : x - Step 2: Convert to fraction form
8,499,877.14/11,728,843.66 = 5,190,508.74/x - Step 3: Cross multiply
8,499,877.14x = 11,728,843.66 × 5,190,508.74 - Step 4: Simplify right side
8,499,877.14x = 60,878,665,527,323.59 - Step 5: Solve for x
x = 60,878,665,527,323.59/8,499,877.14 - Step 6: Final answer
x = 7,162,299.47
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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.