Finding the Fourth Proportional to 3,405,909,658.20, 5,108,864,487.30 and 3,079,392,307.80
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Solution
The fourth proportional to 3,405,909,658.20, 5,108,864,487.30 and 3,079,392,307.80 is: 4,619,088,461.70
Step by Step Solution
- Step 1: Write the proportion equation
3,405,909,658.20 : 5,108,864,487.30 = 3,079,392,307.80 : x - Step 2: Convert to fraction form
3,405,909,658.20/5,108,864,487.30 = 3,079,392,307.80/x - Step 3: Cross multiply
3,405,909,658.20x = 5,108,864,487.30 × 3,079,392,307.80 - Step 4: Simplify right side
3,405,909,658.20x = 15,732,198,003,784,212,480 - Step 5: Solve for x
x = 15,732,198,003,784,212,480/3,405,909,658.20 - Step 6: Final answer
x = 4,619,088,461.70
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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.