Finding the Fourth Proportional to 13,590,702.30, 18,755,171.80 and 7,479,130.80
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Solution
The fourth proportional to 13,590,702.30, 18,755,171.80 and 7,479,130.80 is: 10,321,201.95
Step by Step Solution
- Step 1: Write the proportion equation
13,590,702.30 : 18,755,171.80 = 7,479,130.80 : x - Step 2: Convert to fraction form
13,590,702.30/18,755,171.80 = 7,479,130.80/x - Step 3: Cross multiply
13,590,702.30x = 18,755,171.80 × 7,479,130.80 - Step 4: Simplify right side
13,590,702.30x = 140,272,383,068,671.44 - Step 5: Solve for x
x = 140,272,383,068,671.44/13,590,702.30 - Step 6: Final answer
x = 10,321,201.95
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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.