Finding the Fourth Proportional to 10,442,902.26, 15,667,560.42 and 4,984,961.68
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Solution
The fourth proportional to 10,442,902.26, 15,667,560.42 and 4,984,961.68 is: 7,478,973.41
Step by Step Solution
- Step 1: Write the proportion equation
10,442,902.26 : 15,667,560.42 = 4,984,961.68 : x - Step 2: Convert to fraction form
10,442,902.26/15,667,560.42 = 4,984,961.68/x - Step 3: Cross multiply
10,442,902.26x = 15,667,560.42 × 4,984,961.68 - Step 4: Simplify right side
10,442,902.26x = 78,102,188,312,784.70 - Step 5: Solve for x
x = 78,102,188,312,784.70/10,442,902.26 - Step 6: Final answer
x = 7,478,973.41
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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.