Finding the Fourth Proportional to 5,280,331.13, 7,285,608.02 and 2,988,491.81
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Solution
The fourth proportional to 5,280,331.13, 7,285,608.02 and 2,988,491.81 is: 4,123,411.84
Step by Step Solution
- Step 1: Write the proportion equation
5,280,331.13 : 7,285,608.02 = 2,988,491.81 : x - Step 2: Convert to fraction form
5,280,331.13/7,285,608.02 = 2,988,491.81/x - Step 3: Cross multiply
5,280,331.13x = 7,285,608.02 × 2,988,491.81 - Step 4: Simplify right side
5,280,331.13x = 21,772,979,898,640.32 - Step 5: Solve for x
x = 21,772,979,898,640.32/5,280,331.13 - Step 6: Final answer
x = 4,123,411.84
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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.