Finding the Fourth Proportional to 11,172,608.68, 16,758,805.93 and 6,620,380.63
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Solution
The fourth proportional to 11,172,608.68, 16,758,805.93 and 6,620,380.63 is: 9,930,507.49
Step by Step Solution
- Step 1: Write the proportion equation
11,172,608.68 : 16,758,805.93 = 6,620,380.63 : x - Step 2: Convert to fraction form
11,172,608.68/16,758,805.93 = 6,620,380.63/x - Step 3: Cross multiply
11,172,608.68x = 16,758,805.93 × 6,620,380.63 - Step 4: Simplify right side
11,172,608.68x = 110,949,674,160,901.12 - Step 5: Solve for x
x = 110,949,674,160,901.12/11,172,608.68 - Step 6: Final answer
x = 9,930,507.49
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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.