Finding the Fourth Proportional to 12,903,813.30, 17,806,584.74 and 7,101,486.03
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Solution
The fourth proportional to 12,903,813.30, 17,806,584.74 and 7,101,486.03 is: 9,799,677.80
Step by Step Solution
- Step 1: Write the proportion equation
12,903,813.30 : 17,806,584.74 = 7,101,486.03 : x - Step 2: Convert to fraction form
12,903,813.30/17,806,584.74 = 7,101,486.03/x - Step 3: Cross multiply
12,903,813.30x = 17,806,584.74 × 7,101,486.03 - Step 4: Simplify right side
12,903,813.30x = 126,453,212,737,613.75 - Step 5: Solve for x
x = 126,453,212,737,613.75/12,903,813.30 - Step 6: Final answer
x = 9,799,677.80
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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.