Finding the Fourth Proportional to 11,539,906.36, 15,841,678.74 and 9,905,476.21
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Solution
The fourth proportional to 11,539,906.36, 15,841,678.74 and 9,905,476.21 is: 13,597,976.19
Step by Step Solution
- Step 1: Write the proportion equation
11,539,906.36 : 15,841,678.74 = 9,905,476.21 : x - Step 2: Convert to fraction form
11,539,906.36/15,841,678.74 = 9,905,476.21/x - Step 3: Cross multiply
11,539,906.36x = 15,841,678.74 × 9,905,476.21 - Step 4: Simplify right side
11,539,906.36x = 156,919,371,885,532.78 - Step 5: Solve for x
x = 156,919,371,885,532.78/11,539,906.36 - Step 6: Final answer
x = 13,597,976.19
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.