Finding the Fourth Proportional to 6,449,785,400.56, 8,900,136,149.76 and 3,591,711,645.80
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Solution
The fourth proportional to 6,449,785,400.56, 8,900,136,149.76 and 3,591,711,645.80 is: 4,956,245,932.70
Step by Step Solution
- Step 1: Write the proportion equation
6,449,785,400.56 : 8,900,136,149.76 = 3,591,711,645.80 : x - Step 2: Convert to fraction form
6,449,785,400.56/8,900,136,149.76 = 3,591,711,645.80/x - Step 3: Cross multiply
6,449,785,400.56x = 8,900,136,149.76 × 3,591,711,645.80 - Step 4: Simplify right side
6,449,785,400.56x = 31,966,722,658,298,568,704 - Step 5: Solve for x
x = 31,966,722,658,298,568,704/6,449,785,400.56 - Step 6: Final answer
x = 4,956,245,932.70
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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.