Finding the Fourth Proportional to 10,770,809.20, 16,128,220.20 and 8,512,658.80
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Solution
The fourth proportional to 10,770,809.20, 16,128,220.20 and 8,512,658.80 is: 12,746,863.59
Step by Step Solution
- Step 1: Write the proportion equation
10,770,809.20 : 16,128,220.20 = 8,512,658.80 : x - Step 2: Convert to fraction form
10,770,809.20/16,128,220.20 = 8,512,658.80/x - Step 3: Cross multiply
10,770,809.20x = 16,128,220.20 × 8,512,658.80 - Step 4: Simplify right side
10,770,809.20x = 137,294,035,613,867.77 - Step 5: Solve for x
x = 137,294,035,613,867.77/10,770,809.20 - Step 6: Final answer
x = 12,746,863.59
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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.