Finding the Fourth Proportional to 3,914,677.76, 5,402,244.11 and 2,172,610.08
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Solution
The fourth proportional to 3,914,677.76, 5,402,244.11 and 2,172,610.08 is: 2,998,195.70
Step by Step Solution
- Step 1: Write the proportion equation
3,914,677.76 : 5,402,244.11 = 2,172,610.08 : x - Step 2: Convert to fraction form
3,914,677.76/5,402,244.11 = 2,172,610.08/x - Step 3: Cross multiply
3,914,677.76x = 5,402,244.11 × 2,172,610.08 - Step 4: Simplify right side
3,914,677.76x = 11,736,969,997,143.58 - Step 5: Solve for x
x = 11,736,969,997,143.58/3,914,677.76 - Step 6: Final answer
x = 2,998,195.70
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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.