Finding the Fourth Proportional to 3,981,312,517.20, 5,971,968,775.80 and 2,042,811,704.40
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Solution
The fourth proportional to 3,981,312,517.20, 5,971,968,775.80 and 2,042,811,704.40 is: 3,064,217,556.60
Step by Step Solution
- Step 1: Write the proportion equation
3,981,312,517.20 : 5,971,968,775.80 = 2,042,811,704.40 : x - Step 2: Convert to fraction form
3,981,312,517.20/5,971,968,775.80 = 2,042,811,704.40/x - Step 3: Cross multiply
3,981,312,517.20x = 5,971,968,775.80 × 2,042,811,704.40 - Step 4: Simplify right side
3,981,312,517.20x = 12,199,607,713,515,581,440 - Step 5: Solve for x
x = 12,199,607,713,515,581,440/3,981,312,517.20 - Step 6: Final answer
x = 3,064,217,556.60
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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.