Finding the Fourth Proportional to 5,638,955.50, 7,781,660.94 and 3,060,580.90
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Solution
The fourth proportional to 5,638,955.50, 7,781,660.94 and 3,060,580.90 is: 4,223,548.64
Step by Step Solution
- Step 1: Write the proportion equation
5,638,955.50 : 7,781,660.94 = 3,060,580.90 : x - Step 2: Convert to fraction form
5,638,955.50/7,781,660.94 = 3,060,580.90/x - Step 3: Cross multiply
5,638,955.50x = 7,781,660.94 × 3,060,580.90 - Step 4: Simplify right side
5,638,955.50x = 23,816,402,843,240.05 - Step 5: Solve for x
x = 23,816,402,843,240.05/5,638,955.50 - Step 6: Final answer
x = 4,223,548.64
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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.