Finding the Fourth Proportional to 5,638,963.48, 7,781,671.96 and 3,060,588.92
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Solution
The fourth proportional to 5,638,963.48, 7,781,671.96 and 3,060,588.92 is: 4,223,559.71
Step by Step Solution
- Step 1: Write the proportion equation
5,638,963.48 : 7,781,671.96 = 3,060,588.92 : x - Step 2: Convert to fraction form
5,638,963.48/7,781,671.96 = 3,060,588.92/x - Step 3: Cross multiply
5,638,963.48x = 7,781,671.96 × 3,060,588.92 - Step 4: Simplify right side
5,638,963.48x = 23,816,498,979,850.68 - Step 5: Solve for x
x = 23,816,498,979,850.68/5,638,963.48 - Step 6: Final answer
x = 4,223,559.71
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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.