Finding the Fourth Proportional to 13,056,346.26, 18,019,414.71 and 7,899,750.18
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Solution
The fourth proportional to 13,056,346.26, 18,019,414.71 and 7,899,750.18 is: 10,902,657.74
Step by Step Solution
- Step 1: Write the proportion equation
13,056,346.26 : 18,019,414.71 = 7,899,750.18 : x - Step 2: Convert to fraction form
13,056,346.26/18,019,414.71 = 7,899,750.18/x - Step 3: Cross multiply
13,056,346.26x = 18,019,414.71 × 7,899,750.18 - Step 4: Simplify right side
13,056,346.26x = 142,348,874,598,817.16 - Step 5: Solve for x
x = 142,348,874,598,817.16/13,056,346.26 - Step 6: Final answer
x = 10,902,657.74
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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.