Finding the Fourth Proportional to 8,748,083.70, 13,122,125.55 and 8,188,211.70
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Solution
The fourth proportional to 8,748,083.70, 13,122,125.55 and 8,188,211.70 is: 12,282,317.55
Step by Step Solution
- Step 1: Write the proportion equation
8,748,083.70 : 13,122,125.55 = 8,188,211.70 : x - Step 2: Convert to fraction form
8,748,083.70/13,122,125.55 = 8,188,211.70/x - Step 3: Cross multiply
8,748,083.70x = 13,122,125.55 × 8,188,211.70 - Step 4: Simplify right side
8,748,083.70x = 107,446,741,957,378.94 - Step 5: Solve for x
x = 107,446,741,957,378.94/8,748,083.70 - Step 6: Final answer
x = 12,282,317.55
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1.5x scale
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.