Finding the Fourth Proportional to 8,100,889.05, 12,121,439.99 and 4,864,397.79
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Solution
The fourth proportional to 8,100,889.05, 12,121,439.99 and 4,864,397.79 is: 7,278,646.27
Step by Step Solution
- Step 1: Write the proportion equation
8,100,889.05 : 12,121,439.99 = 4,864,397.79 : x - Step 2: Convert to fraction form
8,100,889.05/12,121,439.99 = 4,864,397.79/x - Step 3: Cross multiply
8,100,889.05x = 12,121,439.99 × 4,864,397.79 - Step 4: Simplify right side
8,100,889.05x = 58,963,505,898,973.62 - Step 5: Solve for x
x = 58,963,505,898,973.62/8,100,889.05 - Step 6: Final answer
x = 7,278,646.27
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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.