Finding the Fourth Proportional to 11,278,519.60, 16,918,431.36 and 3,190,817.76
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Solution
The fourth proportional to 11,278,519.60, 16,918,431.36 and 3,190,817.76 is: 4,786,411.09
Step by Step Solution
- Step 1: Write the proportion equation
11,278,519.60 : 16,918,431.36 = 3,190,817.76 : x - Step 2: Convert to fraction form
11,278,519.60/16,918,431.36 = 3,190,817.76/x - Step 3: Cross multiply
11,278,519.60x = 16,918,431.36 × 3,190,817.76 - Step 4: Simplify right side
11,278,519.60x = 53,983,631,254,828.95 - Step 5: Solve for x
x = 53,983,631,254,828.95/11,278,519.60 - Step 6: Final answer
x = 4,786,411.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.