Finding the Fourth Proportional to 9,192,416, 12,685,621.60 and 5,118,122.48
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Solution
The fourth proportional to 9,192,416, 12,685,621.60 and 5,118,122.48 is: 7,063,057.75
Step by Step Solution
- Step 1: Write the proportion equation
9,192,416 : 12,685,621.60 = 5,118,122.48 : x - Step 2: Convert to fraction form
9,192,416/12,685,621.60 = 5,118,122.48/x - Step 3: Cross multiply
9,192,416x = 12,685,621.60 × 5,118,122.48 - Step 4: Simplify right side
9,192,416x = 64,926,565,083,733.57 - Step 5: Solve for x
x = 64,926,565,083,733.57/9,192,416 - Step 6: Final answer
x = 7,063,057.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.