Finding the Fourth Proportional to 5,638,845.98, 7,781,399.26 and 3,060,471.40
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Solution
The fourth proportional to 5,638,845.98, 7,781,399.26 and 3,060,471.40 is: 4,223,337.53
Step by Step Solution
- Step 1: Write the proportion equation
5,638,845.98 : 7,781,399.26 = 3,060,471.40 : x - Step 2: Convert to fraction form
5,638,845.98/7,781,399.26 = 3,060,471.40/x - Step 3: Cross multiply
5,638,845.98x = 7,781,399.26 × 3,060,471.40 - Step 4: Simplify right side
5,638,845.98x = 23,814,749,860,106.49 - Step 5: Solve for x
x = 23,814,749,860,106.49/5,638,845.98 - Step 6: Final answer
x = 4,223,337.53
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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.