Finding the Fourth Proportional to 11,903,755.10, 16,428,701.60 and 7,009,432.62
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Solution
The fourth proportional to 11,903,755.10, 16,428,701.60 and 7,009,432.62 is: 9,673,911.80
Step by Step Solution
- Step 1: Write the proportion equation
11,903,755.10 : 16,428,701.60 = 7,009,432.62 : x - Step 2: Convert to fraction form
11,903,755.10/16,428,701.60 = 7,009,432.62/x - Step 3: Cross multiply
11,903,755.10x = 16,428,701.60 × 7,009,432.62 - Step 4: Simplify right side
11,903,755.10x = 115,155,876,864,239.03 - Step 5: Solve for x
x = 115,155,876,864,239.03/11,903,755.10 - Step 6: Final answer
x = 9,673,911.80
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1.5x scale
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.