Finding the Fourth Proportional to 4,880,021.54, 7,276,403.64 and 4,745,947.20
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Solution
The fourth proportional to 4,880,021.54, 7,276,403.64 and 4,745,947.20 is: 7,076,490.79
Step by Step Solution
- Step 1: Write the proportion equation
4,880,021.54 : 7,276,403.64 = 4,745,947.20 : x - Step 2: Convert to fraction form
4,880,021.54/7,276,403.64 = 4,745,947.20/x - Step 3: Cross multiply
4,880,021.54x = 7,276,403.64 × 4,745,947.20 - Step 4: Simplify right side
4,880,021.54x = 34,533,427,481,327.81 - Step 5: Solve for x
x = 34,533,427,481,327.81/4,880,021.54 - Step 6: Final answer
x = 7,076,490.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.