Finding the Fourth Proportional to 5,638,745.39, 7,781,476.14 and 3,060,426.49
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Solution
The fourth proportional to 5,638,745.39, 7,781,476.14 and 3,060,426.49 is: 4,223,392.63
Step by Step Solution
- Step 1: Write the proportion equation
5,638,745.39 : 7,781,476.14 = 3,060,426.49 : x - Step 2: Convert to fraction form
5,638,745.39/7,781,476.14 = 3,060,426.49/x - Step 3: Cross multiply
5,638,745.39x = 7,781,476.14 × 3,060,426.49 - Step 4: Simplify right side
5,638,745.39x = 23,814,635,690,705.25 - Step 5: Solve for x
x = 23,814,635,690,705.25/5,638,745.39 - Step 6: Final answer
x = 4,223,392.63
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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.