Finding the Fourth Proportional to 7,138,353.74, 10,694,539.82 and 6,373,078.70
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Solution
The fourth proportional to 7,138,353.74, 10,694,539.82 and 6,373,078.70 is: 9,548,019.95
Step by Step Solution
- Step 1: Write the proportion equation
7,138,353.74 : 10,694,539.82 = 6,373,078.70 : x - Step 2: Convert to fraction form
7,138,353.74/10,694,539.82 = 6,373,078.70/x - Step 3: Cross multiply
7,138,353.74x = 10,694,539.82 × 6,373,078.70 - Step 4: Simplify right side
7,138,353.74x = 68,157,143,933,143.84 - Step 5: Solve for x
x = 68,157,143,933,143.84/7,138,353.74 - Step 6: Final answer
x = 9,548,019.95
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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.